not prevent or forbid; allow

my boss let me leave early

you mustn't let yourself get so involved

used in the imperative to formulate various expressions

allow someone to have the use of (a room or property) in return for regular payments

she let the flat to a tenant

they've let out their house

a period during which a room or property is rented

I've taken a month's let on the flat

hinder

pray you let us not; we fain would greet our mother

(in racket sports) a circumstance under which a service is nullified and has to be taken again, especially (in tennis) when the ball clips the top of the net and falls within bounds

he was obstructed and asked for a let