give away = 1. to give something to someone because you don’t want it or because you want them to have it: Why don’t you give away that racket since you never use it now?
2. to tell a secret or give information: someone did not want to know: Please don’t give away the ending – we’re seeing the film tomorrow.
give back = to give something to someone who had it before you: Please give me back my dictionary. I’ll give it back to you tomorrow.
give in = to agree to something but not because you want to: You mustn’t give in to your children all the time.
give of = to devote or contribute: She really gave of her time to help. They give of themselves to improve the quality of education.
give off = to send forth; emit: chemical changes that give off energy.
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