Translation guide
Expresses doing something independently, without help, or alone. Japanese uses different expressions depending on whether the focus is on independence, solitude, or voluntary action.
He cooked the meal on his own.
Do your homework on your own.
Literally 'with one's own power'. More formal and emphatic than 自分で, often used in written or formal contexts.
He started the company on his own.
Similar to 独力で, emphasizes self-reliance, often used when overcoming difficulties without external help.
She solved the problem on her own.
The subject is physically alone or does something without other people present.
The subject does something without being told or forced, on their own initiative.
The subject lives or acts in a self-sufficient manner, without depending on others for support.
自分で focuses on doing something by one's own effort or ability, while 一人で focuses on being physically alone. For example, 自分で作った means 'I made it myself (without help)', whereas 一人で作った means 'I made it alone (with no one else present)'.
I made this cake on my own (by myself).
Making a cake on your own (alone) is lonely.
The English phrase 'on one's own' cannot be directly translated word-for-word into Japanese. Using 〜の上に or similar literal renderings will be incomprehensible. Always choose an appropriate phrase based on the intended meaning.
He took on the task on his own initiative.
She is financially on her own.