ALLOW › to allow someone to do something, or to allow something to happen: Let them play outside. Don't let the camera get wet. It's best to let nature take its course. We let a whole year go by before we tried again.
let sb/sth in/past/through, etc › to allow someone or something to move to a particular place: They won't let us past the gate. I won't let him near my children. The roof lets in a lot of rain.
let's › something that you say when you are making a suggestion: Let's eat out tonight. Let's not bother with the washing-up.
let me/us › something that you say when you are offering to help someone: Let me carry your cases.
BUILDING › If you let a building or part of a building, you allow someone to live there and they give you money: I let the top floor of my house to a student.
Let's see/Let me see › something that you say when you are trying to remember something or calculate something: Let's see - there are five people and only three beds. It must have been - let me see - three years ago.
Let's say › something that you say when you are suggesting a possible situation or action: Let's say you manage to sell half the books. Let's say we'll meet back here in an hour.
let sb know (sth) › to tell someone something: [+ question word] I'll let you know when we've fixed a date for the meeting.
let (sth) go › to stop holding something: I let go of the rope. You have to let the handle go.
let yourself go › to allow yourself to become less attractive or healthy: It's easy to let yourself go when you're pregnant. › to relax completely and enjoy yourself: It's a party - let yourself go!
let's face it › something that you say when the truth is unpleasant but must be accepted: Let's face it, we're not getting any younger. → See also let the cat out of the bag → See also let your hair down → See also get/let sb off the hook → See also let off steam