For 10 points. "What is the isospin
singlet PARTNER of the pi-zero meson?"
The Big Bang Theory Season 1, Episode 13
he's perpetuating that relationship
by seeking out a PARTNER like you?
The Big Bang Theory Season 9, Episode 12
-Partner.
-I don’t know.
Money Heist Season 1, Episode 8
Now, does this look
like a PARTNER to you?
Breaking Bad Season 5, Episode 16
That my drug-addicted PARTNER
doesn't seem to care whether
he lives or dies?
Breaking Bad Season 4, Episode 4