---
title: What is a slot in DOOH advertising?
description: "One unit of inventory: a share of a screen's ad loop for a period of time. Learn what Slot means in DOOH advertising."
type: glossary
term: Slot
shortDefinition: "One unit of inventory: a share of a screen's ad loop for a period of time."
category: screens
alsoCalled:
  - Spot
  - Ad slot
seeAlso:
  - Inventory
  - Booking
  - Play
---

Digital screens rotate several ads in a loop. A slot is one position in that loop for a set period — for example, every loop between 10am and 9pm on a weekend.