一陣|いちじんichijin[0]heiban (flat)

1. noungust of wind
   電車でんしゃが近ちかづくと、トンネルから一陣いちじんの熱風ねっぷうが吹ふきつけた。↗

   There was a gust of hot wind from the tunnel as the train approached.
2. nounvanguard

• Related前衛ぜんえいWrittenWritten/formal prose. Covers an army's advance guard and avant-garde art; it has no gust-of-wind sense, so it cannot replace 「一陣」 in 「一陣の風」.
• Related先陣せんじんWrittenWritten/formal prose. The position arrayed before the main camp, or going in first; it can replace 「一陣」 for leading the charge but never for a gust of wind.
• Related先鋒せんぽうNeutralNeutral. The unit that leads the charge, or the first competitor sent out in a team match such as kendo or judo; no gust-of-wind sense.
• Related前軍ぜんぐんWrittenRare, written/formal prose. Denotes troops fighting at the very front line; a purely military term with none of 「一陣」's gust-of-wind use.
• Related先遣部隊せんけんぶたいWrittenWritten/formal prose. A detachment sent ahead of the main force to scout the enemy and open the route; it never means a gust of wind.
• Related尖兵せんぺいWrittenWritten/formal prose. Soldiers or units probing the enemy from the front line, or a pioneer opening up a new field; no gust-of-wind sense.

「一陣」 usually means a brief spell of wind or rain, as in 「一陣の風」, and only secondarily a vanguard. For leading the charge say 「先陣」 or 「先鋒」; for the advance-guard unit say 「前衛」.

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

1. 雨風あめかぜが一頻ひとしきり降ふったり吹ふいたりすること。
2. 先陣せんじん。
3. 先駆さきがけ。