To follow out or through to the end; perform completely, as something projected, prescribed, or ordered; carry into complete effect; accomplish: as, to execute a purpose, plan, design, or scheme.To perform or do: as, to execute a difficult gymnastic feat; to execute a piece of music.In law: To complete and give validity to, as a legal instrument, by performing whatever is required by law to be done, as by signing and sealing, attestation, authentication, etc.: as, to execute a deed or lease.To perform or carry out fully, as the conditions of a deed, contract, etc.To give effect to; put in force; enforce; as, to execute law or justice; to execute a writ; to execute judgment or vengeance.To perform judgment or sentence on; specifically, to inflict capital punishment on; put to death in accordance with law or the sentence of a court: as, to execute a traitor.Hence To put to death; kill; do to death.To carry out or accomplish a course of action, a purpose, or a plan; produce an effect or result aimed at.To perform a piece of music: as, he executes well.Executed; accomplished.