要よう員いんTop 4000MeaningsNoun1. (necessary) personnel; required personKanji used要needed員memberPitch accentよういんUsed in vocabulary保ほ安あん要よう員いんmine guards (during a strike)Noun偵てい察さつ要よう員いんplayer put on starting list to be replaced by another when the opponent's pitcher is knownNoun作さ業ぎょう要よう員いんwork forceNoun保ほ線せん要よう員いんrailway (railroad) maintenance personnelNoun戦せん闘とう要よう員いんcombat personnel; combatant; fighting staffNoun