Answer:
The letter Vav is usually reserved as a prefix meaning "and". Native Hebrew words that begin with Vav are rare. Most words in Hebrew that begin with Vav are of foreign origin. Here is a short list of some native words:
ודאי (vah-DAH-ee) certainly
ודאות (vah-dah-OOT) certainty
וו (vav) hook
ורד (vered) rose
ותיק (vateek) veteran, a person with seniority
וידוי (vidui) confession
ותרני (vatrani) compliant