<p><strong>Noun:</strong></p><ul><li>the time that the life of someone or something continues; the term of a life: peace within our lifetime.</li><li>Physics: mean life.</li></ul><p><strong>Adjective:</strong></p><ul><li>for the duration of a person's life: He has a lifetime membership in the organization.</li></ul><p><strong>End of Response</strong></p>