
Do you understand
the CONCEPT of blackmail?
The Big Bang Theory Season 1, Episode 16

It's proof of CONCEPT.
The Big Bang Theory Season 9, Episode 24

with the CONCEPT
that time is an illusion.
The Big Bang Theory Season 12, Episode 19

so the CONCEPT of a bastard
doesn't exist.
Game of Thrones Season 7, Episode 4

I didn't really understand
the CONCEPT of death, the finality of it.
Game of Thrones Season 2, Episode 9