fly sheet vs tent flap

fly sheet and tent flap both are nouns.

Word	Noun	Adjective	Verb	Adverb
fly sheet	Yes	No	No	No
tent flap	Yes	No	No	No

As nouns, fly sheet and tent flap are synonyms defined as:

fly sheet and tent flap: flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent

Other synonyms of fly sheet include fly, rainfly, tent-fly.

fly sheet (noun)	tent flap (noun)
flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent	flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent