big word
Noun
Meaning
An erudite word, especially a Latinate or multisyllabic one; a word used by scholars, intellectuals, etc., but that is not commonly known outside of academia.
(in the plural) Boastful language.
Source: en.wiktionary.orgRelated terms
Examples
“I don’t like to use the word squandered – that’s a big word.
“Impossible is a big word, but what the city has indicated is that they’re not going to be able to come together with a public-private plan,” Smith said.
"But they can only win the title if they beat us twice, and though it only has two letters, 'if' is a very big word."
That is a big word and I doubt if I will ever use it again.
I admit that's a big word for many folks and they don't understand what it means.
He sent every page back with one big word in red, circled in red ink, on the first page: BULLSHIT.