I cannot differentiate the listed words below:
Wail
to make a long, high cry, usually because of pain or sadness, or to make a sound like thisMourn
To feel or express deep sadness, esp. because of someone’s deathWhine
If you whine, especially as a child, you complain or express disappointment or unhappiness repeatedly
Please consider that, in many dictionaries, they have not been dedicated for a specific purpose while they emphasize by the adverbs "usually" and "specifically" in their definitions; hence, I don't know whether using each one in a particular case would be natural or not!
For instance, I don't know which choice would be more idiomatic and natural in each case below:
(First scenario) (informal case)
A: Why are you ____________?
B: Oh, you don't know how much my leg hurts.(Second scenario)
A: Did you know that Ana's father passed away last night.
B: Seriously!!! What a catastrophe! I'm really worried about her! Have you heard of her since morning? Is she OK?
A: She is not OK at all!! Keeps sitting at home crying and ____________(Third scenario)
- Last night, I couldn't sleep whatsoever! A cat was lying down on the wall ____________ just behind my sleeping room's window.