verb / noun
tuck
TUK/tʌk/
A folding or drawing inward into a compact position.
The father tucks the blanket's loose edge beneath the child's mattress.

Etymology
Probably from Middle Dutch or Middle Low German tucken, meaning “pull up,” tuck first described gathering a hanging garment close together. That clothing action developed into pressing or folding something into a snug place.
In context
IT’S A GOOD IDEA TO TUCK YOUR PANTS INTO YOUR SOCKS.
More examples
- The gymnast draws her knees to her chest in a tuck.
- He sews two narrow tucks into the blouse.
- A tummy tuck tightens loose skin around the abdomen.
Forms
tuck · tucks · tucked · tucking