ガス欠[gasuketsu] running out of gasoline (petrol)
欠けがえのない[kakegaenonai] irreplaceable
間欠[kanketsu] intermittence
金欠[kinketsu] running out of money
欠かす[kakasu] to miss (doing)

欠く[kaku] to chip
欠け[kake] fragment
欠ける[kakeru] to be chipped
欠員[ketsuin] vacancy
欠課[kekka] cutting class

一礼[ichirei] bow (salute, greeting)
家礼[kerai] retainer
回礼[kairei] going from door to door greeting relatives and friends
割礼[katsurei] circumcision (male)
儀礼[girei] etiquette

儀礼的[gireiteki] formal
儀礼兵[gireihei] guard of honor
虚礼[kyorei] empty (useless) formalities
偶像礼拝[guuzoureihai] idolatry
軍礼[gunrei] military honors