A string attached to a latch allowing it to be disengaged from the opposite side.

A key, especially to an outside door. / A child who is given a key to the home and is expected to remain at home alone (without adult supervision until the parents return from work).

Equipped with a key; generally in the phrase latchkey child.

plural of latchkey

A small lever action crossbow with the cocking lever built into the top of the stock and a top mounted trigger. / (obsolete) A thong or cord, especially one used to fasten a shoe.

A small latch, as for a gate.

plural of latchet

plural of latchstring

plural of latchkey kid

(informal) A schoolchild who carries keys to his or her house because there is usually no parent home when school finishes.