1. Long Vowel Rule #1...If a one-part word has two vowels,
the first vowel is usually long and the second is silent.
fried
plead
greedy
playful
coaster weakness goes
freedom sprain
Sunday
boast
grease
hoe
float
snowing
Diphthong
a sound formed by the combination of two vowels in a single syllable, in which
sound begins as one vowel and moves to another.
ow
oi
oy ou
The_Diphthong_Song_ (1)