pleat

definition: any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape
example:
speech part: noun
synonyms: plait
definition: fold into pleats, 'Pleat the cloth'
example:
speech part: verb
synonyms: plicate
definition: pleat or gather into a ruffle
example:
speech part: verb
synonyms: ruffle

How pleat is being used?