衛兵|えいへいeihei[0]heiban (flat)

1. nounguard; sentinel; garrison

• Synonym守衛しゅえいNeutralA civilian guard posted at the entrance of a company or government office. 「衛兵」 is a soldier.
• Synonym番人ばんにんNeutralA watchman who guards a place; not necessarily a soldier, unlike 「衛兵」.
• Synonym歩哨ほしょうWrittenA soldier standing sentry at a fixed post; written/formal. 「衛兵」 guards camps, palaces and the like, so its sense is a bit broader.
• Synonym番兵ばんぺいWrittenA soldier assigned to keep watch; also a sentinel value in programming. Written register; 「衛兵」 leans toward formal guard duty.
• Related見張りみはりNeutralKeeping watch or standing lookout; not limited to soldiers, and can also mean the person keeping watch. 「衛兵」 is strictly a military guard.
• Related看守かんしゅNeutralA prison guard or warder, as in a jail; 「衛兵」 is a soldier guarding camps, palaces and similar sites.
• Related番卒ばんそつWrittenA written word for a soldier guarding in shifts; used very rarely — say 「衛兵」 or 「番兵」 instead.

Use 「衛兵」 for a soldier guarding a camp or palace. For a sentry at a fixed post say 「歩哨」; for keeping watch or a lookout, 「見張り」; for a company or office door guard, 「守衛」; for a prison guard, 「看守」.

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

1. 守衛しゅえいする兵士へいし。敵てきの襲撃しゅうげきなどに備そなえて見張みはりをする兵へい。