greengrocer's apostrophe noun1 •An incorrectly used apostrophe; (especially) one mistakenly used to form the plural of a noun, for example: writing the plural of banana as banana's (a possessive) instead of bananas.[A] flashing neon sign advertising the Pari's Hotel is less an early case of greengrocer's apostrophe than a sardonic Pascalian allusion (pari in French meaning 'bet'). — 1993 formsgreengrocer's apostrophes · greengrocer's-apostrophes · greengrocers apostrophe's
