underscore

noun

1. A line drawn or printed beneath text; the character _.

   “He walks into the house and picks up a pen. The thought he has is a brilliant idea. He must write it down. Only two words need to be written. The underscore adds importance. / BOUNTY HUNTER”

2. A piece of background music.

verb

1. (transitive)To underline; to mark a line beneath text.

   “By convention, Rubyists usually underscore their method names.”

2. (transitive)To emphasize or draw attention to.

   “I wish to underscore the importance of proper formatting.”

   “The tale thus underscores in expressive form the semiparadoxical fact that traders can lie by telling the truth.”

   “Not trusting filmgoers to catch the drift, Ms. Coppola underscores the women’s attempts to gussy up with snippets of arch dialogue.”

   “Biden on Monday unveiled new measures to tackle antisemitism on college campuses and senior officials underscored the need to combat anti-Jewish hate.”