TV series example of the word

The Big Bang Theory Season 12, Episode 20
Then we'll eat before.KOOTHRAPPALI: Okay.

The Big Bang Theory Season 6, Episode 5
Okay.

The Big Bang Theory Season 10, Episode 23
Okay. And what did you do when they took you off the anti-fungal team?

The Big Bang Theory Season 2, Episode 11
Leonard, are you okay here?

Breaking Bad Season 2, Episode 7
Okay.