Give away/out [something] means to distribute something:
- The bank was giving away calendars this week.
- The toy shop gave balloons out to children today.
Give [someone] away means to reveal a person’s real identity or secret:
- Bob dressed as Santa Clause, but his cologne gave him away.
- The bank robber’s raspy voice gave him away and he was easily identified.
Give in means to surrender or yield one’s opinion or position:
- The boss finally gave in and let me have a day off on Friday.
- No matter how much the children begged their mother for a new toy, she didn’t give in.
We use give it up for ~ in the imperative form to mean “please begin applauding for ~”:
- And now, please give it up for our featured presenter, Mr. Bill Gates!
- Ladies and Gentlemen: Let’s give it up for our employee of the month, Jack Jones.
Give off means to emit (light, energy, heat, scent, etc):
- That heater gives off enough heat for the whole room.
- Those flowers give off a lovely fragrance.
[something] gives out means to use up one’s energy, power, or physical ability:
- I was talking all day at the meeting and by 7pm, my voice gave out.
- After walking around the city all morning, my legs gave out. I just had to take a break.
Give up means to surrender or to stop making an effort to do something.
- The bank robber gave up when he realized the police were surrounding his house.
- I gave up asking the boss for a day off. He’s not such a flexible guy.
Give up also means to quit doing something habitual
- I gave up smoking when I was twenty-five.
- I heard Jane gave up drinking coffee.