欠ける【かける】
to chip, to be chipped, to break (off), to be damaged, to be missing (from a set, team, etc.), to be absent, to become lost, to be lacking (in), to be short (of), to be deficient, to be wanting (in), to wane (of the moon), to go into eclipse
欠点【けってん】
fault, defect, flaw, weak point, weakness, shortcoming, drawback, failure (in an examination), failing grade
欠く【かく】
to chip, to nick, to break, to crack, to lack
欠席【けっせき】
absence, non-attendance
不可欠【ふかけつ】
indispensable, essential
欠陥【けっかん】
defect, fault, flaw, deformity, deficiency, shortage, gap
補欠【ほけつ】
filling a vacancy, supplementation, substitute, deputy, alternate, spare
欠如【けつじょ】
lack, absence, shortage, deficiency, privation
欠乏【けつぼう】
deficiency, insufficiency, shortage, lack, want, dearth, scarcity
出欠【しゅっけつ】
attendance or absence
欠かす【かかす】
to miss (doing), to fail (to do)
欠員【けついん】
vacancy, vacant position
欠場【けつじょう】
absence, not taking part
欠損【けっそん】
deficit, shortage, loss, being partially broken, being partially missing, being partially removed
欠勤【けっきん】
absence (from work)
欠航【けっこう】
cancellation (of a flight or sea voyage)
欠落【けつらく】
missing, lacking