English Reference
Word adjective

outdoor

adj.
US /ˈaʊtˌdɔɹ/ UK /aʊtdˈɔː/ out·door
Definition
  1. 01 B1 Intermediate

    happening or used outside, not inside a building.

    situated in, designed for, or carried on in the open air rather than within an enclosed structure.

    Simple

    “We decided to have an outdoor party because the weather was so warm.”

    In context

    “The city council invested in several outdoor gyms to encourage residents to exercise in the fresh air during the summer months.”

    Usage

    This is an attributive adjective, meaning it almost always appears before the noun it describes.

    Pitfall
    I like to play outdoor. I like to play outdoors.

    Use 'outdoor' as an adjective before a noun (outdoor sports). Use 'outdoors' as an adverb to describe where an action happens.

    Synonyms
    outsideopen airexternal
    Antonyms
    indoor

Usage outdoor activities

Etymology

From out- + door.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B1 · Intermediate
Frequency Common
Updated