Meaning: key (for a door, car, etc.)

Example sentence:

השארתי את המפתח על השולחן.

Hish’ar’ti et ha-mafte’ach al ha-shulchan.

English: I left the key on the table.

Note: Useful when traveling or staying at a friend’s place. In Israel, keys are often attached to a keychain called מחזיק מפתחות (machzik maftechot).