[noun] - (the use of) a word or phrase used to avoid saying another word or phrase that is more forceful and honest but also more unpleasant or offensive'Senior citizen' is a euphemism for 'old person'. [C]The article made so much use of euphemism that often its meaning was unclear. [U]
EUPHEMISM
Meaning of EUPHEMISM in English
Cambridge English vocab. Кембриджский английский словарь. 2012