An act of tucking; a pleat or fold.

A fold in fabric that has been stitched in place from end to end, as to reduce the overall dimension of the fabric piece.

A curled position.

To pull or gather up (an item of fabric).

To push into a snug position; to place somewhere safe or somewhat hidden.

“Tuck in your shirt.  I tucked in the sheet.  He tucked the $10 bill into his shirt pocket.”

(often with "in" or "into") To eat; to consume.