From Longman Dictionary of Contemporary Englishplaidplaid /plæd/ noun 1 [uncountable]TIM a pattern of crossed lines and squares, used especially on cloth SYN tartan British English a plaid shirt2 [countable]DC a piece of plaid cloth worn over the shoulder and across the chest by people from Scotland as part of their national costume
Examples from the Corpus
plaid• Even John Major, who is a friend of Wigley's, turned up at a Plaid party a few years ago.• Tartan patterns and plaids are applications of this theme.• The charcoal glen plaids are distinctive for their fine royal blue lines.• Polo shirts in plaids, stripes and solids are worn with jeans or cotton twill pants.• But too much plaid gets on the nerves.• He tried to wipe them away on the sleeve of the plaid shirt, but it was no good.Origin plaid (1500-1600) Scottish Gaelic plaide 