'Pleat' definitions:

Definition of 'pleat'

From: WordNet
noun
Any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape [syn: pleat, plait]
verb
Pleat or gather into a ruffle; "ruffle the curtain fabric" [syn: ruffle, pleat]
verb
Fold into pleats, "Pleat the cloth" [syn: pleat, plicate]

Definition of 'Pleat'

From: GCIDE
  • Pleat \Pleat\ (pl[=e]t), n. & v. t. See Plait. [1913 Webster]