keep under control; keep in check;
"suppress a smile"
"Keep your temper"
"keep your cool"
secure and keep for possible future use or application;
"The landlord retained the security deposit"
"I reserve the right to disagree"
hold back; refuse to hand over or share;
"The father is withholding the allowance until the son cleans his room"
- He tried to keep the matter dark from us.
- We must not keep back anything we know.
- Do I have to keep my ticket till after I get off?
- You can keep this book for your very own.
- The police had to use force to hold back the crowd.
- They should try to keep prices from rising.
- Police horses were used to keep back the crowd.
- He resolved that nothing should hold him back.
- keep back 隐瞒