先せん頭とう部ぶ隊たいMeaningsNoun1. advance troops; vanguard; advance contingent; leading unitKanji used先before (timewise)頭head部section隊squadComposed of先せん頭とうhead (of a line, group, etc.); front; lead; forefront; vanguardNoun部ぶ隊たいforce; unit; corps; squad; troops; partyNoun