Hotel terms glossary

Plain-English definitions of the hotel, revenue and OTA terms you’ll meet in Roomsy and across the industry, each linked to the guide that puts it to work.

7 min readUpdated October 30, 2026

Hotels run on shorthand: ADR, CTA, VCC, OOO. This glossary explains the terms you’ll meet in Roomsy, on OTA extranets and in industry reports. Each entry links to the guide that shows how it works in Roomsy. Press / to search the docs for anything that isn’t here.

A

ADR (average daily rate)

The average price paid per room sold: room revenue ÷ rooms sold. If 30 rooms earned $4,500, ADR is $150. It measures price, not how full you are.

In Roomsy: Revenue management

Allotment

A fixed number of rooms set aside for one channel or partner, such as a tour operator or your booking engine. Once the allotment is sold, that channel shows no availability even if other rooms are free.

In Roomsy: Set up the online booking engine

ARI (availability, rates and inventory)

The data a channel manager keeps in sync across your OTAs: how many rooms are free, what they cost and the restrictions on each date.

In Roomsy: Connect OTAs with the channel manager

Authorisation

Also called: pre-authorisation, card hold

A hold placed on a guest’s card for an amount, without taking the money yet. It is captured later, for example at checkout, or voided if it isn’t needed. Commonly used to cover incidentals.

In Roomsy: Connect a payment gateway

B

BAR (best available rate)

The standard, flexible rate a property offers on a given date, and the base most other rates are worked out from. It usually changes with demand.

In Roomsy: Rate plans and pricing

Booking engine

Also called: internet booking engine, IBE

The booking page on a property’s own website, where guests check availability and book directly, with no OTA commission.

In Roomsy: Set up the online booking engine

Booking source

Also called: channel, market source

Where a booking came from: walk-in, phone, your booking engine or a specific OTA. Tracking it shows what each channel is worth to you.

In Roomsy: Reports

Business date

Also called: selling date, audit date

The day a property is operating on for accounting. It changes when the night audit runs, not at midnight, so a guest arriving at 1 a.m. still belongs to the previous night.

In Roomsy: Night audit and the daily routine

C

Cancellation policy

The terms for cancelling a booking: the deadline for cancelling free of charge and any fee after it. Show it to guests before they book.

In Roomsy: Set up your property

Channel manager

Software that connects a PMS to OTAs such as Booking.com, Expedia and Airbnb. It pushes availability and rates out and pulls bookings in, so every channel stays in sync and rooms aren’t double-booked.

In Roomsy: Connect OTAs with the channel manager

Charge type

The category of an invoice line, such as Room Charge, Food & Beverage or Parking. It decides which taxes apply and how revenue is grouped in reports.

In Roomsy: Set up your property

Commission

The share of a booking’s value an OTA keeps for selling the room. Direct bookings through your own booking engine carry no commission.

In Roomsy: Set up the online booking engine

Connectivity provider

The channel manager an OTA account is linked to. Each OTA account can have only one, which is why switching channel managers needs a little planning.

In Roomsy: Connect OTAs with the channel manager

CTA (closed to arrival)

A restriction that stops guests checking in on a date. They can still stay through it. Often used to protect longer stays over busy periods.

In Roomsy: Rate plans and pricing

CTD (closed to departure)

A restriction that stops guests checking out on a date. They can still stay through it.

In Roomsy: Rate plans and pricing

D

Day use

Also called: hourly booking, day room

A room sold for a few hours during the day rather than overnight, for example to travellers between flights.

In Roomsy: Features, emails and extensions

Derived rate

Also called: linked rate

A rate plan worked out from another by a percentage or a fixed amount, for example Bed & Breakfast = BAR + $35. Change the base rate and the derived rate follows.

In Roomsy: Rate plans and pricing

Direct booking

A booking made straight with the property, on its website, by phone or in person, rather than through an OTA, so no commission is paid.

In Roomsy: Set up the online booking engine

Double booking

Two guests booked into the same room for the same night, usually because two channels sold the last room at the same time. A PMS with a channel manager prevents it by taking a room off sale everywhere the moment it is booked.

In Roomsy: Connect OTAs with the channel manager

Dynamic pricing

Changing room rates as demand changes, rather than keeping one price per season: rates rise as dates fill up and fall to fill soft dates.

In Roomsy: Revenue management

E

Extranet

The website an OTA gives properties to manage their listing, rates and bookings. Once a channel manager is connected, change rates and availability in the PMS, not the extranet.

In Roomsy: Connect OTAs with the channel manager

F

Folio

Also called: guest folio, guest ledger

The running account of a guest’s stay: every charge, every payment and the balance owed. One stay can have several folios when more than one party pays.

In Roomsy: Invoices and payments

G

Group booking

Also called: room block, group block

Several rooms booked together for one party or event, such as a wedding or a tour, usually billed on one master folio.

In Roomsy: Create a booking

Guest profile

A guest’s record: contact details, stay history, invoices and balance. Keeping one profile per guest builds a picture of your repeat guests.

In Roomsy: Manage bookings and guests

I

In-house

A guest who has checked in and is currently staying.

In Roomsy: Manage bookings and guests

Inclusive tax

A tax already contained in the price shown, which is common for VAT. An exclusive tax is added on top of the price.

In Roomsy: Set up your property

M

Master folio

Also called: master invoice, master account

One folio that collects the charges for a whole group, so the organiser can settle a single bill.

In Roomsy: Invoices and payments

Minimum stay

Also called: min stay, minimum length of stay, MinLOS

The fewest nights a guest must book for arrivals on a date, often used on weekends and holidays. A maximum stay caps it the other way.

In Roomsy: Rate plans and pricing

N

Night audit

The end-of-day close: it posts the night’s room charges, closes the day’s figures and rolls the business date forward.

In Roomsy: Night audit and the daily routine

No-show

A guest with a booking who neither arrives nor cancels. Many properties charge a no-show fee under their cancellation policy.

In Roomsy: Manage bookings and guests

O

Occupancy rate

The share of available rooms that were sold: rooms sold ÷ rooms available. Selling 30 of 40 rooms is 75% occupancy.

In Roomsy: Revenue management

OTA (online travel agency)

A website that sells rooms for many properties in return for a commission, such as Booking.com, Expedia, Airbnb or Agoda.

In Roomsy: Connect OTAs with the channel manager

Out of order

Also called: OOO

A room that can’t be sold because of repairs or maintenance, so it is taken out of availability. Some properties also use out of service for a room that is briefly unavailable but still counted in inventory.

In Roomsy: Housekeeping and room status

Overbooking

Selling more rooms than you have, either on purpose to offset expected no-shows or by accident through channels that aren’t in sync. Accidental overbooking is what a channel manager prevents.

In Roomsy: Connect OTAs with the channel manager

P

Pace

Also called: booking pace, pickup

How fast bookings for a future period are coming in, compared with the same point last month or last year. A slow pace is an early sign to adjust rates.

In Roomsy: Revenue management

Payment gateway

The service that processes card payments between the property, the guest’s bank and the property’s bank account, such as Stripe or Square.

In Roomsy: Connect a payment gateway

A secure web page sent to a guest so they can pay a deposit or balance online with their card.

In Roomsy: Connect a payment gateway

PCI DSS (Payment Card Industry Data Security Standard)

The security rules for any business that stores, processes or transmits card data. A payment gateway with tokenization keeps card numbers off your own systems.

In Roomsy: Connect a payment gateway

PMS (property management system)

The core software a hotel runs on: reservations, the front desk, guest folios, housekeeping, rates and reports.

In Roomsy: Getting started with Roomsy

R

Rack rate

The full, undiscounted published price of a room, before any deals or negotiated rates.

In Roomsy: Rate plans and pricing

Rate parity

Offering the same price for the same room and conditions on every channel. Setting rates once in the PMS and letting the channel manager push them everywhere keeps them consistent.

In Roomsy: Connect OTAs with the channel manager

Rate plan

A price and its conditions for a room type, such as Non-Refundable or Bed & Breakfast. One room type usually has several.

In Roomsy: Rate plans and pricing

Registration card

Also called: reg card

The form a guest signs at check-in, confirming their details, dates, rate and the property’s policies.

In Roomsy: Manage bookings and guests

Revenue management

Also called: yield management

Setting prices and restrictions from demand to earn the most from a fixed number of rooms: higher rates when demand is strong, offers to fill soft dates.

In Roomsy: Revenue management

RevPAR (revenue per available room)

Room revenue ÷ rooms available, or occupancy × ADR. It rewards price and occupancy together, which makes it the headline measure of how well rooms are priced.

In Roomsy: Revenue management

Room status

Also called: housekeeping status

A room’s housekeeping state, such as clean, dirty, inspected or out of order. It tells the front desk which rooms are ready for the next guest.

In Roomsy: Housekeeping and room status

Room type

A category of rooms sold at the same price, such as Deluxe King. Rates and availability are set per room type, and each booking is assigned to a specific room.

In Roomsy: Set up your property

S

SPLY (same period last year)

This period’s figures compared with the same dates a year earlier, which takes seasonality out of the comparison.

In Roomsy: Revenue management

Stayover

A guest who is staying another night, neither arriving nor leaving today. Housekeeping usually services stayover rooms differently from departures.

In Roomsy: Night audit and the daily routine

Stop sell

Closing a date to sales on your online channels while the front desk can still book it.

In Roomsy: Rate plans and pricing

T

Tokenization

Replacing a card number with a meaningless token. The payment gateway keeps the real number, and the PMS stores only the token it uses to charge the card later.

In Roomsy: Connect a payment gateway

Two-factor authentication

Also called: 2FA

A second sign-in step, usually a 6-digit code from an authenticator app, so a stolen password alone can’t open the account.

In Roomsy: Team, roles and security

V

VCC (virtual credit card)

A card number an OTA such as Booking.com or Expedia issues to pay the property for a booking the guest paid the OTA for. It is charged through a card vault.

In Roomsy: Connect a payment gateway

W

Walk-in

A guest who arrives without a reservation and books at the front desk.

In Roomsy: Create a booking

Still stuck?

Our support team answers every message. Inside Roomsy, open Help → Support Request, or email us.