Origin: Germanic Old English prefix
Outdoor has 4 different meanings across 1 category:
To publicly display a child after it has been named
"The outdoor ceremony was held to formally present their newborn son to the community immediately after his name was announced."
In plain English: To go outside and enjoy fresh air or exercise.
"The outdoor activity was canceled because of the storm."
Usage: The word "outdoor" is an adjective used to describe activities or objects located outside; it cannot function as a verb. If you intend to describe the act of publicly displaying a child after naming them, use the specific term "to outdoor," though this is extremely rare and often considered archaic or dialectal in modern English.
located, suited for, or taking place in the open air
"outdoor clothes"
"badminton and other outdoor games"
"a beautiful outdoor setting for the wedding"
pertaining to or concerning the outdoors or outdoor activities
"outdoor education is the area of teacher training concerned with training for outdoor activities"
Situated in, designed to be used in, or carried on in the open air.
"We need to move the picnic table outside because it's too hot for our indoor outdoor dining setup."
In plain English: Outdoor means something that happens outside in the open air rather than inside a building.
"We played soccer in the outdoor court all afternoon."
Usage: Use "outdoor" only when describing something specifically located outside, such as an outdoor pool or outdoor furniture. Do not use it to mean "outside" as a general adverb; instead, place the word before the noun it modifies.
The word outdoor is formed by combining the prefix out with the noun door to mean literally outside a building. It entered English as a straightforward compound phrase that eventually became a single adjective and adverb.