v. /un"deuhr skawr', -skohr', un'deuhr skawr", -skohr"/ ; n. /un"deuhr skawr', -skohr'/ , v. , underscored, underscoring , n.
v.t.
1. to mark with a line or lines underneath; underline, as for emphasis.
2. to stress; emphasize: The recent tragedy underscores the danger of disregarding safety rules.
n.
3. a line drawn beneath something written or printed.
4. music for a film soundtrack; background for a film or stage production.
[ 1765-75; UNDER- + SCORE ]