weatherstrip vs weather strip

weatherstrip and weather strip both are nouns.

Word	Noun	Adjective	Verb	Adverb
weatherstrip	Yes	No	Yes	No
weather strip	Yes	No	No	No

As nouns, weatherstrip and weather strip are synonyms defined as:

weatherstrip and weather strip: a narrow strip of material to cover the joint of a door or window to exclude the cold

Other synonyms of weatherstrip include weather stripping, weatherstripping.

weatherstrip (noun)	weather strip (noun)
a narrow strip of material to cover the joint of a door or window to exclude the cold	a narrow strip of material to cover the joint of a door or window to exclude the cold

weatherstrip (verb)	weather strip (verb)
provide with weatherstripping