give away

US /ɡɪv əˈweɪ/
UK /ɡɪv əˈweɪ/
"give away" picture
1.

to reveal a secret or information that was supposed to be kept hidden

:
His nervous laughter gave away his true feelings.
Don't give away the ending of the movie!
2.

to give something to someone free of charge

:
They are giving away free samples at the store.
We decided to give away our old furniture.