lose their life (lives)

Pick "life" for a single person and "lives" for more than one. Match the noun to the number implied by the subject or possessive.

Quick answer

Use life for one person and lives for multiple people. If the subject or possessive refers to more than one person, write "lives"; if it refers to a single person, write "life."

One person → "He lost his life."
More than one person → "They lost their lives."
Ambiguous antecedent → name the people or add a number: "Two students died" or "Three workers lost their lives."

The rule, briefly

"Life" is singular; "lives" is the plural. The noun must agree with the number of the people affected, not with the word "life" alone.

Use "lost his life" / "lost her life" when referring to one person.
Use "lost their life" only when referring to one person using singular they (can sound awkward); prefer "that person lost their life" or "they died."
Use "lost their lives" when referring to multiple people, regardless of gender.

Real usage: work, school, casual

Examples across settings help the rule stick. Each sentence matches number and tone to context.

Work - "Three firefighters lost their lives while battling the blaze."
Work - "A technician lost his life after the lab accident."
Work - "Several contractors lost their lives in the collapse."
School - "A student lost her life in the road accident near campus."
School - "Two students lost their lives during the field trip."
School - "The tournament continued after one player lost his life in an unrelated incident."
Casual - "He died last night" (short, direct in conversation).
Casual - "They lost their lives in the crash" (when referring to multiple friends).
Casual - "That neighbor lost his life suddenly" (one person, gentle phrasing).

Wrong vs right examples you can copy

These pairs highlight number agreement clearly.

Wrong: "Thousands of people lost their life during the storm."
Right: "Thousands of people lost their lives during the storm."
Wrong: "Several workers lost his life in the accident."
Right: "Several workers lost their lives in the accident."
Wrong: "A passenger lost their lives on the train."
Right: "A passenger lost their life on the train." or "They lost their life on the train."
Wrong: "The family lost their life in the house fire."
Right: "The family lost their lives in the house fire."
Wrong: "He lost their life in the war."
Right: "He lost his life in the war."
Wrong: "Three athletes lost his life during the competition."
Right: "Three athletes lost their lives during the competition."

How to fix your sentence (rewrite help)

Fixing errors often needs a quick check for the subject and antecedent. Follow these steps and consider a small rewrite if the sentence reads awkwardly after correction.

Step 1: Identify who the sentence refers to (one person or several).
Step 2: Use "life" for one, "lives" for more than one; match the pronoun accordingly.
Step 3: Reread the sentence and smooth the tone if needed.

Original: "The committee lost their life in the accident."
Rewrite: "A committee member lost his life in the accident." or "Committee members lost their lives in the accident."
Original: "Someone lost their lives on the hike."
Rewrite: "Someone lost their life on the hike." or "They lost their life on the hike."
Original: "Several staff lost his life during the incident."
Rewrite: "Several staff members lost their lives during the incident."

A simple memory trick

Link form to quantity. Picture one person → life; picture more than one → lives. When unsure, replace the phrase with a name or a number to force the correct form.

Test: replace with "two people"-if it fits, use "lives."
Search your text for "lost their life" and check whether each case refers to one or many.

Similar mistakes, hyphenation, and spacing notes

These related errors often appear near number-agreement mistakes. A quick scan saves time.

Pronoun-number mismatch: "They lost his life" → fix pronouns and nouns to match.
Singular they: "That person lost their life" is acceptable; "they lost their lives" implies multiple people.
Hyphenation/spacing: this phrase is not hyphenated-write "lost his life," not "lost-his-life" or "lost hislife."
Verb choice: "died" or "was killed" can be clearer and shorter in headlines or summaries.

FAQ

Is "lost their life" ever correct?

Yes, when referring to one person with singular they: "A witness lost their life." It can sound formal; consider "that person lost their life" or "they died" if clarity matters.

When should I write "He lost his life" vs "He died"?

"He died" is direct and common in headlines. "He lost his life" is gentler and often used in feature writing or obituaries.

How do I fix "They lost his life"?

Correct the mismatch: if it's one man, use "He lost his life"; if it's multiple people, use "They lost their lives"; or name the people involved.

Can "lost their lives" be used for gender-neutral language?

Yes. Use "their" with "lives" for multiple people. For a single gender-neutral person, use "that person lost their life" or "they died."

What if the antecedent is unclear?

Name the people or add a number: change "The group lost their life" to "A group member lost his life" or "Group members lost their lives."

Quick fix: paste your sentence to check agreement

If you're still unsure, paste the sentence into a grammar checker or run a quick find for "lost their life" and verify each instance for singular vs plural. Fixing all occurrences at once saves time and improves consistency.