Whistle=)
A seven letter word that means a high shrill sound would be "whistle".
screech
Yourmom
Screamed, howled, shrieked, yelled, shrilled...
Whistle
The word you are looking for is "squeak."
The schwa sound in the word "stomach" is represented by the letter "a."
In the word "oxygen," the letter "y" makes the "ee" sound.
In a word phase letter s gives sound of z(buzzing sound)
In the word "anchor," the sound of the letter 'a' is pronounced as a short a sound, like the 'a' in "cat" or "bat."
The word bed has no A or A sound. The word "bad" has a short A sound.
Yes, in the word "angel," the letter "a" is pronounced with a short "a" sound, like in the word "cat."