Question

collaboration means :
the act of cutting
the act of starting a new operation or practice
the act of coming closer
act of working jointly

Explanation:

The word "collaboration" is related to working together. "The act of cutting" is "cutting"; "the act of starting a new operation or practice" is "initiation"; "the act of coming closer" is "approaching". "Act of working jointly" aligns with the meaning of collaboration.

Answer:

act of working jointly