Definitions

1. noun

the length of time that someone or something is alive or in existence

“She spent her lifetime working as a teacher.”

2. noun

the period of time for which something, especially a product or a warranty, is guaranteed to be in good working order

“The company offered a lifetime guarantee on its appliances.”

3. noun

the time that it takes to complete something, especially a project or a task

“The development of the new software took a lifetime to complete.”

4. noun

the period of time that someone or something is active or productive

“He had a lifetime of experience as a musician.”

5. noun

the period of time that something is valid or in effect

“The new law will be in effect for a lifetime.”

6. adjective

lasting or continuing for the whole of a person’s life

“She had a lifetime of memories from her childhood.”

7. adverb

for the whole of a person’s life

“He spent his lifetime working hard.”

8. phrase

for all time

“This achievement will be remembered for a lifetime.”