let

1 to give permission to my parents would not let me drive until I had a job and could pay for my own gas

2 my parents would not let me drive until I had a job and could pay for my own gas chiefly British  to give the possession and use of (something) in return for periodic payment the pensioner has begun letting rooms in her East End home to earn some extra money Synonyms lease, rent [chiefly British]Related Words charter, engage, hire; lodge; sublease, sublet; rack-rent

3 to make able or possible the low gravity on the moon lets you make enormous leaps and jumps Synonyms allow, empower, enable, permitRelated Words fit, habilitate, prepare, qualify, ready; approve, endorse (also indorse), sanction; condition, equipNear Antonyms inhibit, preclude; disallow, enjoin, forbid, prohibitAntonyms prevent

4 to fail to prevent (some behavior on someone's part) especially from neglect or indifference they let their kids get away with murder Synonyms allow, permit, suffer, tolerateRelated Words brush (aside or off), condone, disregard, ignore, overlook, shrug off, wink (at); excuse, forgive, pardon; brook, cater (to), give in (to), humor, indulgeNear Antonyms forbid, prohibit; curb, deter, discourage, frustrate, hold back, impede, inhibit, interfere (with)Antonyms bar, block, constrain, prevent