記入entry収入income入院hospitalization入学entry to school or university入場entrance輸入importation四捨五入rounding up (fractions)侵入penetration入社entry to a company介入intervention加入becoming a member購入purchase新入生freshman潜入infiltration投入throw導入introduction入手obtaining入賞winning a prize or place (in a contest)入浴bathe納入payment
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会社Company社会society社長company president新聞社newspaper company社会科学social science社説editorial商社trading company入社entry to a company社交social life社宅company owned house出社arrival (in a country at work etc.)