Translation guide
The English adverb 'solely' means 'only' or 'exclusively,' often emphasizing that something is done for a single reason, by a single person, or with a single purpose. In Japanese, this concept is expressed through adverbs, particles, and set phrases that limit scope.
Expressing that something is limited to one thing, person, or reason, with no others involved.
A versatile particle meaning 'only' or 'just.' It attaches to nouns, verbs, and adjectives. It is the most common and neutral way to express 'solely.'
He alone knows.
I spoke solely the truth.
A formal, written equivalent of だけ. Often used in official documents, literature, or formal speech. It can sound stiff in casual conversation.
This product is sold solely within Japan.
A common pattern combining ただ (merely) with だけ to emphasize exclusivity. It translates to 'solely' or 'nothing but.'
His sole purpose is money.
An adverb meaning 'simply' or 'merely.' Often used with だけ or のみ to reinforce the idea of 'solely.'
That is solely a misunderstanding.
An adverb meaning 'exclusively' or 'wholly,' often used when an action is devoted to a single purpose. It can sound slightly formal or literary.
He devotes himself solely to research.
Emphasizing that an action is done with one specific motivation or goal.
A pattern meaning 'solely for the sake of ~.' It clearly states the exclusive purpose.
He works solely for the money.
I exercise solely for my health.
Literally 'with only ~ as the reason.' It explicitly states that something is the sole cause.
Indicating that something is done by one person alone, without help.
だけ is the standard, everyday word for 'only.' のみ is its formal, written counterpart. In spoken Japanese, のみ can sound overly stiff or literary. Use だけ in most situations, and のみ in formal writing or speeches.
This room is for women only. (casual/neutral)
This room is for women only. (formal/written)
English 'solely' often corresponds to だけ or のみ, but directly translating it as 単独に or 唯一に can sound unnatural. Instead, use the patterns shown above depending on context.
The weather wasn't the sole reason he didn't come.
The company entered the new market solely on its own.