Ka, ka, ka, kap, ka, kaaaaaahhhhhhhhh

I've started tallying up the use/interpretation/meaning of "ka" or "kap"(used by men, the former by women). It's an one-word sentence that is the most prevalently heard expression.

So far, I've come up with:
- Hi.
- Hello.
- Bye.
- Sure.
- OK.
- Yes.
- I hear ya.
- I get it.
- I understand.
- I can do it.
- If you want.
- Fine.
- You're good to go.
- Sir/Madam (as in greeting)
- (grunt- as in acknowledgment)
- Alright. (as in, alright, alright, jeez!)
- Here.
- There.
- Whatever you say.
- Hey.
- I hear you.
- Yes, exactly.

Imagine.. not having all those options, and cutting down to a syllable. Kaaaa.