What is the meaning of carrying out?

noun

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

verb

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