Translation guide
The English word 'underline' can be a verb meaning to draw a line under text or to emphasize something, and a noun meaning the line itself. This guide covers natural Japanese equivalents for each use.
To physically draw a line beneath written or printed text, often for emphasis or marking.
To stress the importance of something, often in speech or writing.
The standard verb for 'emphasize'. Works in most contexts.
The physical line drawn under text.
The standard noun for 'underline'.
When using 'underline' to mean 'emphasize', do not translate literally as 下線を引く unless you are actually drawing a line. Use 強調する or similar verbs instead.
Please underline the important words.
Uses the loanword 'underline'. Common in educational or casual contexts.
Underline this sentence.
A more general 'draw a line'. Can be used when the context makes it clear it's an underline.
Please draw a line here (under this).
He underlined the importance of safety.
To emphasize strongly, often with passion or conviction. Slightly more intense than 強調する.
She underlined the need for reform.
Literally 'to bring into relief'. Used to highlight a problem or contrast, often in formal writing.
This incident underlined the inequality in society.
Please add an underline to the title.
Loanword, common in casual or educational settings.
Read the part that is underlined.