Since the dog kept whining under the bed during a terrible thunderstorm, the owner decided to quell his fear(not plural) of the thunder.

Rebuke: ( verb ) Disapprove

The teacher boldly rebuked the students for running in the crowded hallway.

Reconcile: ( verb ) to restore

Even though friends argue with each other (sometimes), they always seem to apologize and reconcile.

Refute: ( verb ) To prove wrong

The protester refuted to the CEO of the company that they didn’t earn much salary from their jobs. (I’d re-write this sentence, it doesn’t sound right. I’d use something like, The speaker refuted his opponent’s arguments.)

Regale: ( verb ) To delight

Dane Cook, a famous comedian, regaled the whole audience with entertaining

Other than what I’ve marked in (), good job!

Reconcile: to restore

(you don’t say what they are reconciling. “they apologize and restore”)

Even though friends will sometimes argue with each other, they always seem to apologize and reconcile their friendship.

Refute: to prove wrong

read it this way….”the protester proved wrong to the CEO of the company that they didn’t earn much salary from their jobs.”

doesn’t really make sense anymore, does it? try rewriting it, maybe as:

“The company’s CEO refuted the claims that workers were not receiving a high enough salary from their jobs.” this works much better,

Regale: To delight

I am not sure if you put in two “l”s when adding an -ed to the end of it. is it “regaled” or “regalled”? You might want to double check that though, I could be wrong.