Plural of “chief”

The plural of chief is chiefs.

Why

"Chief" comes from Old French "chief" (modern French "chef"), from Latin "caput," head — the same ultimate root behind "capital" and "captain." Because it entered English through French borrowing rather than surviving continuously as a native Old English word, it never went through the historical sound shift that turned some native -f nouns, like "wolf" and "leaf," into -ves plurals; it simply takes a plain -s.

This makes "chief" a useful contrast to "belief" and "roof": all three end in -f and all three take a plain -s rather than -ves, but for somewhat different underlying reasons — "chief" because it's a French loanword that arrived after the -ves pattern had already stopped spreading to new words, while "belief" and "roof" are native English words that, for reasons linguists don't fully agree on, simply resisted the -ves shift that affected many of their native neighbors.

Usage note

"Chiefs" is standard in every context, from tribal and organizational leadership titles to compound job titles like "chief of staff" and "police chief."

"Chief" also functions as an adjective in fixed job titles and compounds, "chief executive," "chief financial officer," "commander in chief," treating the word as a modifier meaning "principal" rather than as the countable noun discussed here. Indigenous governance traditions across North America use "chief" and its plural in ways that vary considerably by nation and community, some using the term for a single hereditary or elected leader, others for a council of several chiefs sharing collective authority.

Common real mistakes

There's essentially no plural confusion with this word, since "chiefs" is completely regular; occasional errors involve compound titles, where writers sometimes pluralize the wrong part of the phrase (writing "chief of staffs" instead of the correct "chiefs of staff," since "chief" is the head noun being pluralized, not "staff"). The same compound-plural rule applies to other "chief of" titles, including "chiefs of police" and "chiefs of surgery," all of which pluralize the leading noun rather than the trailing prepositional phrase.

The wider pattern

"Chief" belongs to the group of -f nouns that take a plain -s rather than -ves, alongside "roof," "cliff," and "belief" — a pattern that contrasts sharply with native English words like "wolf," "leaf," and "knife," which do convert to -ves, showing that the -f-to-ves shift was never a truly universal rule even among words that otherwise look similar.

Examples

• The tribal chiefs met to discuss the treaty terms.
• Several police chiefs attended the regional conference.
• The company's chiefs approved the new budget unanimously.
• Fire chiefs from three counties coordinated the response.
• The council includes chiefs representing five different departments.
• Both chiefs of staff negotiated the final agreement.
• Ancient chiefs ruled over scattered village communities.
• The military chiefs briefed the president on the situation.
• Several tribal chiefs signed the historic land agreement.
• The magazine profiled the city's most influential business chiefs.
• Tribal chiefs from the region signed the joint statement.
• Corporate chiefs gathered for the annual industry summit.
• The council elected new chiefs to represent each district.
• Fire chiefs coordinated evacuation routes ahead of the storm.
• The department named acting chiefs during the transition.
• Several chiefs testified before the legislative committee.
• The tribal council welcomed new chiefs at the ceremony.
• Regional chiefs met annually to renew the alliance.
• Village chiefs gathered to settle the boundary dispute.
• The new chiefs introduced reforms within their first year.
• Both chiefs praised the agreement as a lasting peace.
• The assembly recognized outgoing chiefs with a formal tribute.
• Regional chiefs signed a joint statement on water rights.
• The new chiefs inherited a strained budget.
• The union elected new chiefs to lead contract negotiations.
• Both fire chiefs praised the crew's quick response.