Whats the rule that makes "please" pronounced the same as "pleas"?
14.06.2025 00:59
There's no rule.
What's (not “whats”) the rule?
Words are pronounced the way that they're pronounced.
Pleas is spelled <pleas> because it's the plural of pleas.
Back in the day (circa 1300), it was written <plesen>.
While you may reasonably ask why words are spelled the way they're spelled, it makes no sense to ask why they're pronounced the way they're pronounced.
You'll usually find your answer there.
Please is an anglicization of the French word plaisir.
Whence the <ea> I cannot say but some other words that were spelled <ai> in French are spelled <ea> in English: aise → ease, graisse → grease, fait → feat.
If you're curious about why a word is spelled the way it's spelled, your first recourse should be etymonline dot com.