let (Verb) — Make it possible through a specific action or lack of action for something to happen.
let (Verb) — Actively cause something to happen. ex. "I let it be known that I was not interested"
let (Verb) — Consent to, give permission. ex. "I won't let the police search her basement"
let (Verb) — Cause to move; cause to be in a certain position or condition. ex. "This let me in for a big surprise"
let (Verb) — Leave unchanged. ex. "let it be"
let (Verb) — Grant use or occupation of under a term of contract. ex. "I am letting my country estate to some foreigners"
let (Verb) — Assume or suppose that. ex. "let X be an integer greater than 1"
let (Noun) — A brutal terrorist group active in Kashmir; fights against India with the goal of restoring Islamic rule of India. ex. "LET has committed mass murders of civilian Hindus"
let (Noun) — A serve that strikes the net before falling into the receiver's court; the ball must be served again.
let (Noun) — The period when something is rented.