operative

/ˈɑpərətɪv/
noun
  1. A person who works as a spy, detective, or secret agent.
    • The detective hired a private operative to follow the suspect.
    • The CIA operative was stationed overseas for three years.
    • In the movie, the operative infiltrates the enemy organization.
  2. A skilled worker, especially in a factory or industrial setting.
    • She started as a textile operative and later became a supervisor.
    • The factory employs over 200 machine operatives.
    • The operative checked the assembly line for defects.
Synonyms
adjective
  1. In effect; functioning or working.
    • Is the heating system operative yet?
    • The agreement is operative as soon as both parties sign.
    • The new law becomes operative on January 1st.
  2. Most important or relevant in a particular situation.
    • In this case, the operative word is 'temporary'.
    • The operative phrase in the contract is 'subject to approval'.
    • When he said 'maybe,' the operative part was his hesitation.
Antonyms