know everything
Noun
Meaning
know everything (plural know everythings)
Alternative form of know-everything
Synonym of know-it-all
A highly knowledgeable person; expert.
Source: en.wiktionary.orgAlternative names
know-everything
Examples
The old believe everything; the middle-aged suspect everything; the young know everything.
I always like to know everything about my new friends, and nothing about my old ones.
I am not young enough to know everything.
Ask the young. They know everything.
To know everything is to know nothing.
A wise man never knows all, only fools know everything.