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lifetime

/ˈlaɪftaɪm/

Adjective[C/U] Both
pl: lifetimes

This word carries a weight of totality and finality. When applied to humans, it suggests the complete arc of existence from birth to death, often evoking a sense of legacy or the accumulation of a whole life's work. In commercial or technical contexts, the term shifts toward durability and reliability. It transforms from a biological reality into a performance metric, focusing on the point of failure or the end of utility for a product.

Countable when referring to the specific span of one individual or one product (a lifetime). Uncountable when discussing the general concept of the duration of life.

💬Conversación Casual

🎬Tuesday afternoon, Sarah is staring at a crashed computer screen in the office.
Sarah

My laptop just bricked. This thing hasn't even hit its projected lifetime.

Sarah
David
David

Rough. Just pivot to the backup drive until IT sorts it out.

💡
Sarah uses 'lifetime' in a technical sense (functional duration) and employs the slang term 'bricked' to describe a device that has become completely non-functional. David responds with 'pivot', a corporate buzzword he uses to sound like a visionary manager.

Meanings

Noun
[person][object]

The duration of a person's life.

"He achieved more in his short lifetime than most people do in eighty years."

Noun
[object]

The period of time during which something is functional or useful.

"This battery has a projected lifetime of five years."

Adjective
[commitment][guarantee]

Lasting for the duration of a person's life.

"The company offers a lifetime warranty on all its hardware."

Related Words

Last Updated: May 26, 2026Report an Error