Glossary

Corporate travel glossary

Plain-English definitions of the terms, acronyms, and concepts that matter in corporate travel management.

A

Application Programming Interface

Essential The Acronyms People Actually Need First

A defined connection between two travel systems (OBT to expense tool, HR system to OBT, TMC to risk-management platform) that lets them pass data back and forth automatically.

Average Daily Rate (Hotel ADR)

Essential The Acronyms People Actually Need First

The average price paid per occupied room per night — a core hotel benchmarking metric for both hoteliers and corporate buyers.

Approval workflows

Essential The Main Players

Get sign-off before ticketing

Airline

Essential The Main Players

Admin / Workplace

The Main Players

Practical travel coordination

After-hours support

The Main Players

Help during emergencies

Account management

The Main Players

Programme advice

Approved suppliers

The Main Players

Keep bookings within programme

Availability

The Main Players

Can travellers actually book the rate?

Average ticket price

Cost Control

Average cost of a flight ticket

Average daily rate

Cost Control

Average hotel rate per night

Approval

Policy Compliance

Get manager approval before booking

Avoiding unsafe travel

Risk and Duty of Care

Pre-trip risk checks

Ancillaries

Air Travel Terms You Actually Need

Aggregator

Distribution and Technology

API — Application Programming Interface

Distribution and Technology

Application Programming Interface

Advance Booking Window

Data and Reporting

Attrition

Meetings and Events

Are we reducing impact?

Sustainability

B

Best Available Rate

Essential The Acronyms People Actually Need First

The lowest publicly available, unrestricted rate a hotel is selling on a given night — the benchmark a corporate negotiated rate is measured against.

Booking channels

Essential The Big Picture

OBT, TMC, mobile app

BAR — Best Available Rate

Essential Hotels and Accommodation

Best Available Rate

Booking

The Big Picture

Approved tools and agencies

Suppliers

Budget

Approval Workflow

Project code approval

Booking Class / RBD

Air Travel Terms You Actually Need

BEO — Banquet Event Order

Meetings and Events

Banquet Event Order

C

Carbon Dioxide Equivalent (CO₂e)

Essential The Acronyms People Actually Need First

A single unit that bundles all greenhouse gases (CO₂, methane, nitrous oxide and others) into the warming impact they'd have as an equivalent amount of CO₂ — the standard unit for reporting travel emissions.

Carbon reporting and reduction

Essential Sustainability

Governance

Carbon reduction and reporting

Essential Sustainability

Executives

Compliance

Essential Supplier Leverage

Whether travellers actually use preferred suppliers

Carbon budget

Essential Sustainability

A limit on emissions

Carbon

Essential Approval Workflow

High-emissions trip

Carbon Offset

Essential Sustainability and Carbon

Corporate Travel

The Big Picture

Convenience

The Main Players

Easy booking

Comfort

The Main Players

Sensible flight times

Clarity

The Main Players

Knowing what is allowed

Corporate deals

The Main Players

Discounts, incentives, benefits

Cost

Sustainability

Taxis and ride-hailing can leak spend

Cost avoidance

Cost Control

Money not spent because a cheaper option was chosen

Choice

Traveller Experience

Sensible flight and hotel options

CO₂e

Sustainability

Carbon dioxide equivalent

Consumer website

Booking Channel

Public booking site

Complex international trips

Offline Booking

Multiple sectors and rules

Cabin

Approval Workflow

Business class request

Car

Approval Workflow

Pickup/drop-off

Change

Change, Cancel, Refund

Modify date, time, route, or traveller details

Cancellation

Change, Cancel, Refund

Cancel the booking

Credit

Change, Cancel, Refund

Value retained for future use

Cabin Class

Air Travel Terms You Actually Need

Corporate Hotel Rate

Hotels and Accommodation

Corporate Card

Money, Payment and Expense

Crisis Management

Risk and Disruption

Control

How to Think About Corporate Travel in One Page

Are people following the programme?

Codeshare

Air Travel Terms You Actually Need

D

Disruption

Essential Offline Booking

Human judgement needed

Data

The Big Picture

Reporting spend, behaviour, savings, and carbon

Distribution

The Main Players

Which channels bookings come through

Documenting decisions

Risk and Duty of Care

Governance and audit trail

Destination risk

Approval Workflow

High-risk country

Direct Connect

Distribution and Technology

Dashboard

Data and Reporting

E

Environmental, Social and Governance

Essential The Acronyms People Actually Need First

The umbrella for non-financial performance areas — environmental impact, social/people/community impact, and governance and ethics — that corporates increasingly report on and are judged by.

TMC

Executive assistant

The Main Players

CEO, board, executives

Event coordinator

The Main Players

Groups and conferences

Ground Transport Provider

Ease

Traveller Experience

Simple booking process

Event platform

Booking Channel

Group or conference booking system

F

Finance

Sustainability

Cost, budgets, savings

Flexibility

The Main Players

Ability to change plans

Flights

Policy Compliance

Economy under 6 hours, business class over 8 hours

Forecasting

Supplier Leverage

Whether future demand is understood

Fare

Air Travel Terms You Actually Need

Fare Basis Code

Air Travel Terms You Actually Need

G

Global Distribution System

Essential The Acronyms People Actually Need First

The wholesale booking infrastructure TMCs and OBTs use to search and ticket flights, and to a lesser extent hotels and rail, across hundreds of suppliers in one feed.

Goods and Services Tax

Essential The Acronyms People Actually Need First

Australia's 10% value-added tax administered by the ATO — applied to most domestic travel spend (air, hotel, car, rail, meals) and recoverable as an input tax credit by GST-registered businesses.

GDS — Global Distribution System

Essential Distribution and Technology

Global Distribution System

Governance

The Big Picture

Deciding who owns travel and how decisions are made

Group travel

Offline Booking

More coordination

H

Hotel Supplier

Essential The Main Players

Hotels

Essential Policy Compliance

Stay within city rate cap

Hotel

Essential Approval Workflow

Property and dates

Hotel Attachment

Essential Hotels and Accommodation

HR

Sustainability

Employee experience and wellbeing

I

Inclusions

The Main Players

Breakfast, Wi-Fi, parking

In-sector reduction

Sustainability

Reducing emissions within aviation/travel itself

K

Key Performance Indicator

Essential The Acronyms People Actually Need First

A small set of measurable targets used to judge whether the travel programme is doing what it's supposed to — usually a mix of cost, compliance, traveller experience and risk.

KPI — Key Performance Indicator

Essential Procurement and Supplier Management

Key Performance Indicator

Knowing where travellers are

Risk and Duty of Care

Traveller tracking

L

Last Room Availability

Essential The Acronyms People Actually Need First

A clause in a corporate hotel agreement that the negotiated rate is available even when the property is showing only its last room — so corporate travellers don't get locked out at peak times.

Leakage

Essential Data and Reporting

Loyalty

The Main Players

Frequent flyer engagement

Location

The Main Players

Near office, client, venue, airport

Lost savings

Cost Control

Savings missed because policy or booking behaviour was poor

LRA — Last Room Availability

Hotels and Accommodation

Last Room Availability

Lodge Card / Ghost Card

Money, Payment and Expense

Last-room availability

Hotels and Accommodation

The negotiated rate is available even when the hotel is close to sold out (usually with exceptions).

M

Management Information

Essential The Acronyms People Actually Need First

The reporting layer over the travel programme — combining TMC, OBT, expense, card and supplier data into a single view of who's spending what, where and with whom.

Managed Travel

The Big Picture

Mobile app

Booking Channel

App-based booking or servicing

MI — Management Information

Data and Reporting

Management Information

MICE

Meetings and Events

N

New Distribution Capability

Essential The Acronyms People Actually Need First

An IATA-led XML standard that lets airlines sell richer content (branded fares, ancillaries, continuous pricing, personalised offers) direct to TMCs and OBTs rather than only through the legacy GDS pipe.

NDC — New Distribution Capability

Essential Distribution and Technology

New Distribution Capability

No-show

Change, Cancel, Refund

Traveller does not travel and did not cancel

O

Online Booking Tool

Essential The Acronyms People Actually Need First

The self-service booking website travellers use to book flights, hotels, cars and rail inside policy — usually integrated with the TMC, the expense tool and the approval workflow.

OBT — Online Booking Tool

Essential The Main Players

Online Booking Tool

OBT

Essential Booking Channel

Online corporate booking tool

Office manager

The Main Players

Smaller businesses

Operations

The Main Players

Service delivery

Offsets

Sustainability

Paying for external emissions reduction

P

Passenger Name Record

Essential The Acronyms People Actually Need First

The booking record an airline or GDS holds for a trip — traveller name, flight segments, ticket numbers, contact details and special requests — and the source of truth the airline operates against.

Procurement

Essential Sustainability

Supplier contracts and value

PNR — Passenger Name Record

Essential Approval Workflow

Passenger Name Record

Policy

The Big Picture

Rules for what employees can book

Payments

The Big Picture

Corporate cards, lodge cards, virtual cards

Productivity

The Main Players

Arriving ready to work

Policy rules

The Main Players

Show what is allowed

Preferred fares/rates

The Main Players

Use negotiated deals

Point-to-point flights

Online Booking

Easy comparison

Policy breach

Approval Workflow

Non-preferred hotel

R

Request for Proposal

Essential The Acronyms People Actually Need First

The structured procurement document used to invite suppliers (airlines, hotels, TMCs, car-hire firms) to bid for a corporate's travel programme, usually annually or every two to three years.

Return on Investment

Essential The Acronyms People Actually Need First

The benefit a programme or initiative delivers relative to what it cost — used in travel to justify investments in tools, suppliers, headcount or sustainability spend.

Risk

Essential The Big Picture

Knowing where travellers are

Reporting

Essential The Big Picture

Spend, savings, compliance, leakage

Risk / Security

Essential Sustainability

Traveller safety

Risk support

Essential The Main Players

Traveller tracking and alerts

Reporting data

Essential The Main Players

Capture spend and behaviour

Reconciliation

Essential Money, Payment and Expense

Risk Rating

Essential Risk and Disruption

RFP — Request for Proposal

Essential Procurement and Supplier Management

Request for Proposal

Revenue

The Main Players

How much the company spends

Rate

The Main Players

Negotiated price

Rail and EV options

Sustainability

Traveller experience

Responding to crises

Risk and Duty of Care

Evacuation or rerouting

Relationship

Supplier Leverage

Strategic value to the supplier

Rail substitution

Sustainability

Taking train instead of short-haul flight

Repeat trips

Online Booking

Profiles and templates help

Refund

Change, Cancel, Refund

Money returned to original form of payment

Room Night

Hotels and Accommodation

Run-of-house

Hotels and Accommodation

The hotel assigns any available room type at check-in.

Room Block

Meetings and Events

S

Service Level Agreement

Essential The Acronyms People Actually Need First

The contractual performance standards a supplier commits to — call-answer times, ticketing accuracy, after-hours response, reporting deadlines — usually with financial consequences if they're missed.

Sustainable Aviation Fuel

Essential The Acronyms People Actually Need First

Lower-emissions jet fuel produced from non-fossil feedstocks (used cooking oil, agricultural residues, municipal waste, eventually power-to-liquid) that can be blended with conventional jet fuel and used in existing aircraft.

Suppliers

Essential The Big Picture

Preferred airlines, hotels, cars, rail, TMCs

Supplier access

Essential The Main Players

Fares, rates, content

Supplier direct

Essential Booking Channel

Airline or hotel website

Supplier Scorecard

Essential Data and Reporting

SLA — Service Level Agreement

Essential Procurement and Supplier Management

Service Level Agreement

Travellers

Safety

The Main Players

Support during disruption

Servicing

The Main Players

Changes, cancellations, refunds

Share

The Main Players

How much of the company’s travel they win

Savings

Cost Control

Money actually saved

Support

Traveller Experience

Help when plans change

Supporting emergencies

Risk and Duty of Care

24/7 assistance

Scope 3 emissions

Sustainability

Indirect company emissions, including business travel

SAF

Sustainability

Sustainable Aviation Fuel

Simple domestic trips

Online Booking

Fast and low-cost

Standard hotels

Online Booking

Policy can guide choices

Special requests

Offline Booking

Accessibility, visas, medical, security

SAF — Sustainable Aviation Fuel

Sustainability and Carbon

Sustainable Aviation Fuel

Service

How to Think About Corporate Travel in One Page

Are travellers supported?

T

Travel Management Company

Essential The Acronyms People Actually Need First

A specialist agency that books and manages corporate travel on a company's behalf — handles bookings, after-hours support, supplier deals, reporting and duty of care.

Travel and Expense

Essential The Acronyms People Actually Need First

The combined spend category covering pre-trip bookings (air, hotel, car, rail) and post-trip expenses (meals, taxis, incidentals reclaimed via expense report).

Travel Risk Management

Essential The Acronyms People Actually Need First

The discipline of identifying, assessing, communicating and responding to risks travellers face — from natural disasters and political unrest to medical incidents and lost luggage — to meet the employer's duty of care.

Total Cost of Ownership

Essential The Acronyms People Actually Need First

The full cost of a travel decision over its useful life — including hidden, indirect and downstream costs — not just the sticker price at the point of booking.

Travel policy

Essential The Big Picture

Who can fly business class

Travel Manager

Essential Sustainability

Traveller

Essential The Main Players

TMC — Travel Management Company

Essential The Main Players

Travel Management Company

Traveller profiles

Essential The Main Players

Save preferences and details

TMC consultant

Essential Booking Channel

Human agent support

Traveller details

Essential Approval Workflow

Name, contact, loyalty number

Traveller Tracking

Essential Risk and Disruption

Travel Programme

The Big Picture

Travel Arranger

The Main Players

Team coordinator

The Main Players

Sales, project, field teams

Travel Buyer

The Main Players

Technology

The Main Players

Booking tools, apps, integrations

Total cost of trip

Cost Control

Full cost including air, hotel, transport, meals, fees, and disruption

Timing

Policy Compliance

Book at least 14 days in advance

Trip avoidance

Sustainability

Replacing unnecessary travel

Ticketing

Approval Workflow

Ticket number and status

T&E — Travel and Expense

Money, Payment and Expense

Travel and Expense

U

Urgent travel

Offline Booking

Faster problem-solving

Unused ticket

Change, Cancel, Refund

Ticket not flown that may still hold value

V

Volume

Supplier Leverage

How much the company spends

VIP travel

Offline Booking

Higher service expectations

Virtual Card

Money, Payment and Expense

W

Wellbeing

Traveller Experience

Avoiding unnecessary fatigue

Warning travellers

Risk and Duty of Care

Risk alerts

Y

Yield

The Main Players

Profitability of each seat

Yield Management

Air Travel Terms You Actually Need

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