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troop definition


This page has 13 definitions of troop in English and Dutch, Flemish. Troop is a noun and verb. Examples of how to use troop in a sentence are shown. Also define these 18 related words and terms: military, cavalry, armour, platoon, company, horse, artillery, actor, troupe, Scouting, chapter, patrol, march, mycology, music, literature, linguistics, and trope.

See also: Troop

English troop definition

A troop train in Canada during World War I.


Attested in English since 1545, from French troupe (back-formation of troupeau, diminutive of Medieval Latin troppus "flock") and Middle French trouppe (from Old French trope (band, company, troop)), both of Germanic origin from Frankish *thorp (assembly, gathering), from Proto-Germanic *þurpą (village, land, estate), from Proto-Indo-European *treb- (dwelling, settlement). Doublet of troupe, and possibly also of thorp and dorp.



troop (plural troops)

  1. (collective) A collection of people; a number; a multitude (in general).
  2. (military) A small unit of cavalry or armour commanded by a captain, corresponding to a platoon or company of infantry.
    • Cavalry definition
      The military arm of service that fights while riding horses. (1 of 3 cavalry definitions)
    • Company definition
      A team; a group of people who work together professionally.
      1. A group of individuals who work together for a common purpose. (1 of 11 company definitions)
  3. A detachment of soldiers or police, especially horse artillery, armour, or state troopers.
  4. (chiefly in the plural) A group of soldiers; military forces.
  5. (nonstandard) A company of actors; a troupe.
    (Can we find and add a quotation of W. Coxe to this entry?)
  6. (Scouting) A chapter of a national girl or boy scouts organization, consisting of one or more patrols of 6 to 8 youngsters each.
    • Lord Baden-Powell of Gilwell (1920) Aids To Scoutmastership[1], page 6: “It is the Patrol System that makes the Troop, and all Scouting for that matter, a real co-operative effort.”
    • Scouting definition
      Alternative form of scouting
    • Patrol definition
      A going of the rounds along the chain of sentinels and between the posts, by a guard, usually consisting of three or four men, to insure greater security from attacks on the outposts. (1 of 6 patrol definitions)
  7. (collective) A group of baboons.
  8. A particular roll of the drum; a quick march.
  9. (mycology) Mushrooms that are in a close group but not close enough to be called a cluster.
    • Mycology definition
      The study of fungi, in the wide sense.

Derived terms



troop (third-person singular simple present troops, present participle trooping, simple past and past participle trooped)

  1. To move in numbers; to come or gather in crowds or troops.
    • 1918, W. B. Maxwell, chapter 5, in The Mirror and the Lamp:
      Then everybody once more knelt, and soon the blessing was pronounced. The choir and the clergy trooped out slowly, […], down the nave to the western door. […] At a seemingly immense distance the surpliced group stopped to say the last prayer.
  2. To march on; to go forward in haste.
  3. To move or march as if in a crowd.
    The children trooped into the room.

Derived terms


See also


  • “troop” in the Canadian Oxford Dictionary, Second Edition, Oxford University Press, 2004.
  • Douglas Harper (2001–2021) , “troop”, in Online Etymology Dictionary


Dutch troop definition



troop f (plural tropen, diminutive troopje n)

  1. (music, literature, linguistics) trope
    • Linguistics definition
      The scientific study of language.