que haces=what are you doing
That is nonsense. It has no meaning in Spanish.
Carmen ("C" is spelled as "K" and the whole is girl's name)
Some c words meaning person would be character, child, and customer. Another could be Klingon.
The word "lack" meaning "to be without" is spelled as you have spelled it in the question.
The word "couple" has three phonemes: /k/, /ʌ/, and /p/. Each of these sounds represents a distinct unit of meaning in spoken language.
Kilómetro (kilometer)
In spanish there are only about 4 or 5 words that begin with K Kilo Kilometro kilogramo kilovatio
I doubt it. 'k' is very rare in Spanish
That is nonsense. It has no meaning in Spanish.
y means and
Carmen ("C" is spelled as "K" and the whole is girl's name)
knot
Kinky
yes
it could mean "knob" or "knoblike" depending on the meaning of the word "boss"
Kospi is not a Spanish word. The letter K is not frequently used in Spanish and only in foreign words, like "Kilogram" from languages like Greek that have the letter K.
keen