две большие разницы

• ДВЕ БОЛЬШИЕ РАЗНИЦЫ highly coll

[NP, pl only; subj-compl with быть (subj: any two common nouns, infinitives, or clauses), usu. pres; fixed WO]

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⇒ two people (things, or phenomena, or two groups of people, things, or phenomena) are totally different, defy comparison:

- X и Y - две большие разницы{{}}≈ there is a big (great) difference between X and Y;

- there is a world of difference between X and Y;

- thing X and thing Y are two very (totally) different things.

     ♦ "Она [Варвара] и мои сёстры - это... две большие разницы. Бойкие барышни, живые... Да и молодые, - самая старшая втрое моложе твоей Варвары" (Сологуб 1). "She [Varvara] and my sisters? Listen here...there is a great difference between them. They [my sisters] are lively young ladies, full of pep. ...And they are young, why, the very oldest is three times younger than your Varvara" (1a).