underline

US /ˌʌn.dɚˈlaɪn/
UK /ˌʌn.dɚˈlaɪn/
"underline" picture
1.

下線を引く

a line drawn under a word or phrase, especially for emphasis.

:
subheadings have an underline in blue
2.

下線を引く

the line of the lower part of an animal's body.

:
she has a white tail and underline
1.

下線を引く

draw a line under (a word or phrase) to give emphasis or indicate special type.

:
certain phrases had been underlined