Here is a list of idiomatic expressions using the word keep.
Keep one’s chin up
To keep one’s chin up is to remain cheerful.
- It takes courage to keep one’s chin up in the face of adversity.
Keep in touch with (remain in touch)
- She has promised to keep in touch with me even after moving to Chicago.
- I still keep in touch with my old class-mates.
Keep pace with (stay level with)
- The salaries of employees have to keep pace with the rising rates of inflation.
Keep up (maintain)
- He does everything he can to keep up the reputation of his family.
Keep one’s word
- To keep one’s word is to do what one has promised.
Keep somebody from doing something (= prevent)
- Can’t you keep your dog from barking?
Keep in (hold, detain)
- He was kept in prison for 20 years.