tuck -- ((sports) a bodily position adopted in some sports (such as diving or skiing) in which the knees are bent and the thighs are drawn close to the chest)
tuck -- (a narrow flattened pleat or fold that is stitched in place)
rapier, tuck -- (a straight sword with a narrow blade and two edges)
Overview of verb tuck
The verb tuck has 3 senses
tuck, insert -- (fit snugly into; "insert your ticket into the slot"; "tuck your shirttail in")
tuck -- (make a tuck or several folds in; "tuck the fabric"; "tuck in the sheet")
gather, pucker, tuck -- (draw together into folds or puckers)