近きん接せつ航こう空くう支し援えんMeaningsNoun1. close air supportKanji used近near接come in contact航navigation空empty air支support援assistComposed of近きん接せつproximity; nearness; being nearby; being adjacent; approaching; drawing near; coming closeNoun航こう空くうaviation; flyingNoun支し援えんsupport; backing; aid; assistanceNoun