Yes, troop is in the scrabble dictionary

Troop Definition

noun

A great many; a lot.

A group of soldiers.

A group or company of people, animals, or things. See Synonyms at band2, flock1.

A unit of at least five Boy Scouts or Girl Scouts under the guidance of an adult leader.

A unit of cavalry, armored vehicles, or artillery in a European army, corresponding to a platoon in the U.S. Army.

verb-intransitive

To assemble or move in crowds.

To consort; associate.

To move or go as a throng.

verb

To move or gather in crowds.

To go one's way .

To spend time together .

To move in large numbers.

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