euphemism

n. 1 mild or vague expression substituted for a harsher or more direct one (e.g. Pass over for die). 2 use of such expressions.  euphemistic adj. Euphemistically adv. [greek pheme speaking]

n. A figure in which a harts or indelicate word or expression is softened; a way of describing an offensive thing by an inoffensive expression; a mild name for something disagreeable.