peal, peel

Peal or peal is what a bell does when it makes a sound--
He heard the peal of the bells and hurried home.
The loud peal of the bell was used as an alarm on the ship.

Peel or peel ( rhymes with peal ) means the outer skin of a fruit or vegetable--
The recipe calls for a grated orange peel.
You can eat the potato peel. It won't hurt you.
Peel also means to remove the outer skin from a fruit or vegetable--
Here, you can peel the potatoes.
Make sure to peel the apples before you put them in the pie.

Now that you know that, you can say--
"He started to run when he heard the peal of the bell, but he slipped on an apple peel and fell down."

Note--"appeal"  means the quality of enticement or attraction--
He made an appeal to their sympathy, hoping they would change their minds.
Advertisers often try to appeal to our vanity.
Not to be confused with "a peel", as in "a peel of a lemon"--
There's nothing left but a peel and some seeds.
Or "a peal" as in "a peal of the bell"--
A peal of the bell sent everyone running.