troop

American  

[troop] / trup /

noun

1. an assemblage of persons or things; company; band.

   Synonyms:

   crowd, group, body

2. a great number or multitude.

   A whole troop of children swarmed through the museum.

   Synonyms:

   throng, swarm, flock, herd, crowd

3. Military. an armored cavalry or cavalry unit consisting of two or more platoons and a headquarters group.

4. troops, a body of soldiers, police, etc..

   Mounted troops quelled the riot.

5. a single soldier, police officer, etc..

   Three troops were killed today by a roadside bomb.

6. a unit of Boy Scouts or Girl Scouts usually having a maximum of 32 members under the guidance of an adult leader.

7. a herd, flock, or swarm.

8. Archaic. a band or troupe of actors.

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verb (used without object)

1. to gather in a company; flock together.

   Synonyms:

   collect

2. to come, go, or pass in great numbers; throng.

   Synonyms:

   swarm

3. to walk, as if in a march; go.

   to troop down to breakfast.

4. to walk, march, or pass in rank or order.

   The students trooped into the auditorium.

5. to associate or consort (usually followed bywith ).

verb (used with object)

1. British Military. to carry (the flag or colors) in a ceremonial way before troops.

2. Obsolete. to assemble or form into a troop or troops.

troop British  

/ truːp /

noun

1. a large group or assembly; flock

   a troop of children

2. a subdivision of a cavalry squadron or artillery battery of about platoon size

3. (plural) armed forces; soldiers

4. a large group of Scouts comprising several patrols

5. an archaic spelling of troupe

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verb

1. (intr) to gather, move, or march in or as if in a crowd

2. (tr) military to parade (the colour or flag) ceremonially

   trooping the colour

3. slang (tr) military (formerly) to report (a serviceman) for a breach of discipline

4. (intr) an archaic word for consort

Related Words

See company. Troop, troupe both mean a band, company, or group. Troop has various meanings as indicated in the definitions above. With the spelling troupe the word has the specialized meaning of a company of actors, singers, acrobats, or other performers.

Other Word Forms

• intertroop
  adjective

Etymology

Origin of troop

First recorded in 1535–45; from French troupe, Old French trope, probably back formation from tropel “herd, flock” ( French troupeau ), equivalent to trop- (from Germanic; see thorp) + -el, ultimately from Latin -ellus diminutive suffix

Explanation

A troop is a squad or team of soldiers. Your great grandfather might claim that his was the first army troop to march into France during World War II. Though it's correct to use the noun troop in the singular form, it's more common to see its plural, troops. You can also refer to a group of Girl or Boy Scouts this way: "My troop won a prize for selling the most Girl Scout cookies this year." To troop is also to march, so a military troop might troop down the street in the Veteran's Day parade. The root word is the Old French trope, "band of people."

Example Sentences

The service person, part of the King's Troop, Royal Horse Artillery, fell at around 19:00 BST after leaving the arena.

From BBC • May 16, 2026

Troop commitments in the Middle East magnify the importance of Tokyo’s increasing military muscle in Asia.

From Barron's • May 14, 2026

Troop deployments to Russia have also allowed North Korea to receive cash and possibly technical guidance on weapons and tactics.

From The Wall Street Journal • Feb. 20, 2026

He was having trouble walking when Troop 26 arrived.

From Los Angeles Times • Sep. 5, 2025

When our own Troop C came wearily back from the border they said that none of this was true.

From "East of Eden" by John Steinbeck

Related Words

• armed forces
• army
• contingent
• forces
• military
• soldiers