軽目焼[karumeyaki] hard caramelized sugar candy
気軽[kigaru] carefree
軽い[karui] light (i.e. not heavy)
軽んじる[karonjiru] to look down on
軽音楽[keiongaku] light music

軽歌劇[keikageki] light opera
軽快[keikai] casual (e.g. dress)
軽機[keiki] light machine gun
軽機関銃[keikikanjuu] light machine gun
軽気球[keikikyuu] dirigible balloon