crease vs pleat

crease and pleat both are nouns.

Word	Noun	Adjective	Verb	Adverb
crease	Yes	No	Yes	No
pleat	Yes	No	Yes	No

As nouns, pleat is a hyponym of crease; that is, pleat is a word with a more specific, narrower meaning than crease:

crease: an angular or rounded shape made by folding
pleat: any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape

Other hyponyms of crease include plait, kink, twirl, twist, pucker, ruck, accordion fold, concertina fold, z-fold, zig-zag fold.

crease (noun)	pleat (noun)
a Malayan dagger with a wavy blade	any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape
a slight depression or fold in the smoothness of a surface
an angular or rounded shape made by folding

crease (verb)	pleat (verb)
become wrinkled or crumpled or creased	pleat or gather into a ruffle
make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic	fold into pleats
make wrinkled or creased
scrape gently