傍ぼう線せん

noun

underline; side line

A line drawn alongside text for emphasis, equivalent to underlining in horizontal writing. In vertical Japanese text, the line is drawn to the right (or left) of characters.

• 重じゅう要ような箇か所しょに傍ぼう線せんを引ひいてください。

  Please draw a side line next to the important parts.

• 縦たて書がきの文ぶん書しょでは、傍ぼう線せんは文も字じの右う側そくに引ひかれる。

  In vertically written documents, side lines are drawn to the right of the characters.