euphemism

noun

1. (uncountable)The use of a word or phrase to replace another one that is more offensive, blunt or vulgar.

   “Akin to it [litotes] is euphemism, which may be applied to the same purpose.”

   “In 1946, George Orwell addressed the relationship of language to reality and suggested that euphemism, not imperfect analogy, was the real danger. If we don’t use shocking language to describe a shocking circumstance, can we truly recognize what is happening?”

2. (countable)A word or phrase that replaces another in this way.

   “When it is said of the martyr St. Stephen, that “he fell asleep,” instead of—he died, the euphemism partakes of the nature of metaphor, intimating a resemblance between sleep and the death of such a person.”

   “Euphemistic language turns up in many areas of American life in a variety of situations. Not all euphemisms are alike, but they have one thing in common: They obscure meaning rather than enhance it; they shade the truth.”