Noun

• S: (n) execution, implementation, carrying out (the act of accomplishing some aim or executing some order) "the agency was created for the implementation of the policy"
• S: (n) performance, execution, carrying out, carrying into action (the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it) "they criticised his performance as mayor"; "experience generally improves performance"

Verb

• S: (v) carry through, accomplish, execute, carry out, action, fulfill, fulfil (put in effect) "carry out a task"; "execute the decision of the people"; "He actioned the operation"
• S: (v) follow through, follow up, follow out, carry out, implement, put through, go through with (pursue to a conclusion or bring to a successful issue) "Did he go through with the treatment?"; "He implemented a new economic plan"; "She followed up his recommendations with a written proposal"