Q: Does the word "nick" mean the same thing in "He's in the nick." and "He was arrested and taken down to Sun Hill nick police station to be charged."?

A: the same meaning

Q: Does the word "build" mean the same thing in "Build up confidence." and "The contractor builds houses for $100."?

A: different meanings

Q: Does the word "cover" mean the same thing in "The cover concealed their guns from enemy aircraft." and "They made a cover of a Beatles' song."?

A: different meanings

Q: Does the word "keep" mean the same thing in "Keep count." and "I can not keep track of all my employees."?

A:
the same meaning