Translation guide
How to express 'solo' in Japanese, covering doing things alone, solo performances, and related concepts.
Expressing that an action is performed alone, without others.
The most common and natural way to say 'alone' or 'by oneself' when doing an activity. It's an adverb.
I watched a movie solo.
He likes to travel solo.
More formal, often used in news or official contexts. Implies independent action, sometimes with a nuance of 'solely'.
He completed the project solo.
Same reading as 一人で, but uses the kanji 独 which emphasizes solitude or loneliness. Less common in everyday writing.
I live quietly solo.
Referring to a performance by a single person.
Loanword from English, widely used for musical or dance solos. Can be used as a noun or with で.
Describing an activity done alone, often with a sense of challenge or adventure.
Describing a person who is alone, not with a partner or group.
Noun meaning 'one person' or 'alone'. Often used with で or as a standalone.
一人で is the everyday word for doing something alone. 単独で is more formal and often implies independence or sole responsibility, used in news or official reports.
Go shopping solo. (casual)
彼女のピアノソロは素晴らしかった。
Her piano solo was wonderful.
Play a guitar solo.
Formal term for instrumental solo. Often used in classical music contexts.
A violin solo recital.
Formal term for vocal solo.
She sang an opera aria as a solo.
Used for solo expeditions, especially in mountaineering or long-distance travel.
He attempted Everest solo.
Also used in adventure sports, e.g., ソロクライミング (solo climbing).
Sail a yacht solo.
Are you solo today?
I live solo.
Polite term used in service contexts (restaurants, hotels) for a single customer.
Table for one? (Are you solo?)
Handle negotiations solo. (formal)
In English, 'solo' can be a noun, verb, or adjective. In Japanese, the concept is often expressed with adverbs like 一人で or the loanword ソロ. Using ソロ as a verb (e.g., ソロする) is slangy and not standard.