One dot under a letter has the sound of "ih", a soft "ee". The vowel is called KHIRIK.
Two dots under a letter has the sound of "ey", as in "hey". The vowel is called TSEYREY.
The sixth letter of the Hebrew alphabet has the sound of V.
In ancient Hebrew, it had the sound of W.
A DAGESH placed to the left of the VAV turns it into the vowel SHURUK.
DAVEED - The Hebrew word for "David".
OYEV - The Hebrew word for "enemy".
The TSEYREY is placed under the Hebrew letter YOD, the 10th letter which we have not yet come to.