||We have a car, but it won't go. The motor is kaput.
|keep a lid on it
||not tell others, keep it quiet
||The judges know who won, but they have to keep a lid on it.
|keep a low profile
||not go out much, lay low
||He plans to keep a low profile until the trial is over.
|keep a promise
||do what you promise to do
||You can depend on Vern to keep a promise. He's reliable.
|keep a secret
||not tell anyone, keep it to yourself
||Children can keep a secret better than adults.
|keep a stiff upper lip
||do not cry, do not be afraid
||When Arthur left Tag, Dad said, "Keep a stiff upper lip, Dear."
|keep a straight face
||not smile or laugh, have a a poker face
||When you said I was your uncle, I couldn't keep a straight face.
|keep an even keel
||be steady, be calm and sensible
||Customer Service needs people who can keep an even keel.
|keep an eye on
||watch to prevent harm, watch out for
||Fred, will you keep an eye on the children? I'm going to the store.
|keep an eye open
||(See keep an eye out)