
...I finally arrived at the
Fourth Annual Dixie Trek Convention...
The Big Bang Theory Season 3, Episode 5

You're not gonna make
your own CONVENTION.
The Big Bang Theory Season 7, Episode 14

No. Something
about a CONVENTION.
The Big Bang Theory Season 7, Episode 14

So, your CONVENTION
is in San Diego, right?Yes.
The Big Bang Theory Season 12, Episode 17

I believe that social CONVENTION dictate
you not arrive empty-handed.
The Big Bang Theory Season 3, Episode 6