共和: collaboration; republicanism / 協和: cooperation, concord

協和: to be in concord

強要: to compel, to coerce, to exact / 教養: to edify / 共用: to share something used by all parties / 供用: to provide for the use of others

強要: coercion, a demand / 教養: cultivation, refinement, education / 共用: shared use, common use / 供用: provision for others

engagement, a promise to marry

行っていらっしゃい: alternative form of いってらっしゃい (itterasshai)

see you later (said by a person staying, a stock phrase required by the Japanese etiquette, lit.: (after) going, come back)

(humble) alternative form of いってきます (itte kimasu)

back and forth

(colloquial) Synonym of 行って来ます (itte kimasu, “see you later”)