clothespin vs clothes pin

clothespin and clothes pin both are nouns.

Word	Noun	Adjective	Verb	Adverb
clothespin	Yes	No	No	No
clothes pin	Yes	No	No	No

As nouns, clothespin and clothes pin are synonyms defined as:

clothespin and clothes pin: wood or plastic fastener; for holding clothes on a clothesline

Other synonyms of clothespin include clothes peg.

clothespin (noun)	clothes pin (noun)
wood or plastic fastener; for holding clothes on a clothesline	wood or plastic fastener; for holding clothes on a clothesline