Either "קול" which means "voice" or "כל" which means "all".
The words "kol nidre" are not Hebrew. They are Aramaic, and they mean "All vows".
Voice is of course an English word. So it doesn't mean anything in Hebrew. However, if you are trying to say voice in Hebrew it would be the word 'Kol', spelled Kuf, Vav, Lamed (קול)
The Hebrew word for 'voice' is "KOL".
each, every, all = kol (כל)each one = kol echad (כל אחד)
It depends on context and on how you spell it in Hebrew: kol ami (קול עמי) = "the voice of my people" kol ami (קול עמי) = "national voice" kol ami (כל עמי) = "all of my people"
kol milah (כל מילה)
voice = kol (קול) voices = kolot (קולות)
altogether = be-sakh ha-kol all together = kulam beyachad.
Voice in Hebrew is Kol (קול).
כל הזמן שבעולם = "All the time in the world"
Colin is a person's name. It has no meaning in Hebrew.
kol tuv (כל טוב)