- 成功【せいこう】 - success, achievement, succeeding (in life), (worldly) success, prosperity 
- 完成【かんせい】 - completion, perfection, accomplishment 
- 成長【せいちょう】 - growth, development, growing up, becoming an adult, growth (of a company, the economy, etc.) 
- 賛成【さんせい】 - approval, agreement, support, favour, favor 
- 成績【せいせき】 - results, record, grades, marks 
- 成果【せいか】 - (good) result, outcome, fruits (of one's labors), product, accomplishment 
- 成立【せいりつ】 - formation, establishment, materialization, coming into existence, conclusion (e.g. of a deal), reaching (e.g. an agreement), approval, completion, closing, enacting, arrangement, being valid (of a theory, argument, etc.), holding, applying 
- 達成【たっせい】 - achievement, attainment, accomplishment, realization 
- 大成功【だいせいこう】 - great success, huge success 
- 成分【せいぶん】 - ingredient, component, composition 
- 構成【こうせい】 - composition, construction, formation, makeup, structure, organization, organisation 
- 成し遂げる【なしとげる】 - to accomplish, to finish, to fulfill 
- 形成【けいせい】 - formation, molding, making (up), taking form, giving form to, repair (e.g. with plastic surgery), replacement, -plasty 
- 結成【けっせい】 - formation, combination 
- 未成年【みせいねん】 - minor, not of age 
- 作成【さくせい】 - making (a report, plan, contract, etc.), drawing up, writing out, preparing, creating (a file, website, account, etc.) 
- 編成【へんせい】 - composition, formation, organization, organisation, compilation 
- 平成【へいせい】 - Heisei era (1989.1.8-2019.4.30) 
- 成人【せいじん】 - adult, grownup, becoming an adult, coming of age, growing up (to be a man, woman) 
- 養成【ようせい】 - training, education, development, cultivation