pail, pale

Pail or pail means a bucket--
Go and fetch a pail of water.
The farmer used a pail to feed the hogs.

Pale or pale ( rhymes with pail ) means light in color--
She turned pale when she heard the bad news.
He wanted pale green paint for the living room.
Pale is also used as a verb, meaning to lose one's color, as at an upsetting moment, or to turn pale--
She saw him pale when she mentioned it.
You can't be a hero if you pale at the thought of danger.

 Now that you know that, you can say--
"Grandpa is getting old. He turns pale whenever he lifts a pail of water."

Note--pale is used to mean not as interesting or exciting--in the expression "to pale in comparison" or "to pale by comparison"--
It pales in comparison to the new model.
Note # 2--Pale or pale is an old-fashioned or archaic word for a fence or boundary made of stakes or wood pieces ( palings). It survives in the expression "beyond the pale", meaning outside of what is acceptable or decent behavior; or otherwise "beyond the limits"--
Using foul language in public really is beyond the pale.
Note # 3--"paled" is the past tense ( yesterday, or some time ago ) of the verb ( action word ) "pale", meaning to turn pale--
She paled noticeably whenever anyone mentioned his name.
Not to be confused with "pallid" ( pronounced pal lid ) , meaning very pale, literally, or lifeless, figuratively--
He had such a pallid complexion that she wondered if he was a vampire.
The performance was pallid and uninspired.