軍隊|ぐんたいguntai[1]atamadaka (head-high)

1. nounarmed forces; military; troops
   その軍隊ぐんたいは十分じゅうぶんな武器ぶきを持もっていた。↗

   The troops had plenty of arms.

• Synonym兵隊へいたいCasualColloquial word for soldiers or the military, also used figuratively for an obedient underling; 「軍隊」 is the formal name of the organization.
• Synonym軍兵ぐんぴょうWrittenWritten word for soldiers or troops in battle; in everyday speech say 「兵士」 or 「軍隊」.
• Synonym軍勢ぐんぜいWrittenA force together with its size, as in 「数万の軍勢」; mostly in historical writing and war chronicles.
• Synonym軍ぐんWrittenSame word as above: written 「軍」 or 「兵」 but still read 「いくさ」 — only the spelling differs, unlike 「軍」 read 「ぐん」.
• Synonym軍旅ぐんりょWrittenRare written word for the army or going to war; not used in everyday speech.
• Related兵へいWrittenMainly means war or battle, as in 「戦に出る」; when it means troops it has an archaic flavor.
• Antonym民間みんかんNeutralCivilian, private, non-governmental; the opposite of 「軍隊」 in the military-versus-civilian contrast.

Use 「軍隊」 for the armed forces as an organization. 「兵隊」 is the colloquial word for soldiers or grunts; 「軍勢」 fits historical troop strength; 「戦」 means war or battle; 「民間」 is the civilian opposite.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 作戦さくせん・戦闘せんとうを目的もくてきとして兵士へいしや兵器へいきを総合そうごうした軍事的ぐんじてきな主体しゅたい。