buy into

== English == === Etymology === From buy +‎ into. === Pronunciation === === Verb === buy into (third-person singular simple present buys into, present participle buying into, simple past and past participle bought into) (idiomatic) To believe (something, especially something implausible); to accept (a craze, fad, or notion) as valid. Synonym: fall for Hypernym: buy (finance) To buy stocks or shares of (a business). ==== Translations ====