終(お)わるTo finish, To end

はじめる and おわる can be attached to the stem of verbs to express the contrasting ideas of 'beginning' and 'finishing' an action, respectively. For example, 読みはじめる means 'to begin reading', while 読みおわる means 'to finish reading'.

おわる and だす both attach to verb stems but express opposite ideas, like finishing vs. starting an action. おわる is used for completing almost any action, e.g. 本を読み終わった ('I finished reading the book.'). だす often describes actions that begin suddenly or unexpectedly, e.g. 雨が降り出した ('It started to rain.').

おわる attaches to verb stems to mean 'to finish doing (A)', e.g. 食べおわった ('I finished eating.'). In contrast, てしまう・ちゃう uses the て-form and can also mean doing something completely, but often adds a nuance of regret, finality, or lack of intention, e.g. 食べてしまった・食べちゃった ('I ate it and now it's gone.' or 'I didn't mean to eat it.').

While おわる and 上がる・上げる both attach to verb stems to express finishing an action, their nuances differ. おわる can describe completing any action, e.g. ケーキを食べおわった ('I finished eating the cake.') or 映画を観おわった ('I finished watching a movie.'). 上がる・上げる is typically used when the action results in some completed product, e.g. 論文を書きあげた ('I finished writing the paper.').

Both 切る and おわる attach to verb stems to express finishing an action, but with different nuances. おわる simply marks completion, e.g. 使いおわった ('I finished using it.'). In contrast, 切る often implies using something up, e.g. バターを使い切った ('I used up all the butter.') or doing something to the very end with full effort, e.g. ゴールまで走り切った ('I ran all the way to the finish line.').

Both 込む and おわる attach to verb stems but express different nuances. おわる simply marks the end of an action, e.g. ケーキを食べおわった ('I finished eating the cake.') or 映画を観おわった ('I finished watching a movie.'). 込む adds the sense of doing something thoroughly and staying in that state, e.g. 黙り込んだ ('He fell completely silent and stayed that way.').