be at one’s wit’s end

be Verb

— This verb tells us that a thing is present, or in a place. The book is on the table. There was someone in the room. Were you at the party? — Happen The party was on Saturday. The next meeting will be here. — Go somewhere; visit someone (only in the present perfect tense) I've never been to Disneyland. — A verb we use when describing. The book is blue. They were sad about losing the match. John is 35 years old this year. Im fine. He'd like to be a doctor. The film was terrible! The book is 5 euro. — Act like someone or something Look, Mummy! I'm being a dog! Woof, woof! — We use a form of be and a gerund-participle to make progressive verb forms. He is sitting on the chair. I've been waiting for half an hour. They will be leaving on Tuesday.

at Preposition

— Used to describe where something is, or when saying something's position I am at home. Let's meet at the pub! — The time at which something happened or will happen Breakfast is at 9 o'clock. At 5pm we went home. — Indicating something's state At half price! Water boils at high temperatures.

at Symbol

— The @ symbol, used to replace at support@microsoft.com is an email address. Apples @ £1.50 per kilogram.

end Verb

— To put a stop to something. The movie ends after this scene.

end Noun

— The last one of a group. Or, the last part of a thing, the place where it stops. I tied a knot in the end of the rope.