IPA: //ˈpaɪnˌtʌk//
KK: /ˈpaɪnˌtʌk/
A very narrow fold or tuck in fabric, often used in sewing to create texture or design.
The dress had several pintucks along the bodice for added detail.
Pintuck → The word is formed from "pin" (from Old English *pinn*, meaning a small pointed instrument) and "tuck" (from Old French *toquer*, meaning to fold or tuck). A pintuck refers to a small fold or tuck made in fabric, often secured with a pin.
Think of a 'pin' that holds a small 'fold' in fabric — that's what a pintuck is, a tiny fold secured by a pin.
No commonly confused words.