As that's the PRIMARY ingredient
of baby powder...
The Big Bang Theory Season 4, Episode 21
As you know, the PRIMARY focus
The Big Bang Theory Season 10, Episode 23
My PRIMARY concern
with being granted tenure...
The Big Bang Theory Season 6, Episode 20
Well, that is one of my degrees.
My PRIMARY field is neuroscience.
The Big Bang Theory Season 2, Episode 15
Computer:
Warning.
Primary containment breach.
Westworld Season 2, Episode 10