I like resign (quit) and resign (reenlist). Same spelling, different pronunciation, and opposite meanings.

Re-sign is the correct spelling

Surely the word motorcycle came from bicycle. Someone put a motor on a bicycle.

If we were adhering to the French pronunciation we'd say Bee-sickle not Bye-sickle. Also, although I'm not the one to correct anyone on French it sounds to me like they're saying bee-see-klet not bee-sick-let.
So that's not it.

While we're on the tangent, motocyclette sounds the same as bicyclette so at least it that part makes sense in French.

You're almost certainly correct, but I have seen the unhyphenated reenlist sense of the word pop up in major publications, so I'm not sure that all style manuals agree.

So? I've never heard anyone pronounce "esickle", it's always "esighkull". I realize "ebike" is more common, but if you really want smoke to come out of your ears, why is motorcycle always shortened to "bike"?

So, I thought you said the pronunciation derived from the French bicylette but it doesn't sound like it, so I'm doubting you.

I haven't actually ever heard anyone say e-cycle out loud, but I'd probably also say e-sigh-kul also. Everything-cycle is that way except bicycle - maybe we're all saying it wrong, all this time.

I never refer to my "bike" unless the other person already knows I'm a sicklist because they always want to know how many cc's. I'm sticking with sicklest now, it has to be right when we're riding bisickles.

Which is another question: if you were to shorten bicycle to cycle would you say it sickle or cycle? Ever say "I'm going to 'cycle to the store?" I do ... and I say sigh-kul.

Cyclical is often pronounced with the short i sound. Otherwise, I only know of tricycle and bicycle.

Sorry, but we're trying to explain one syllable of the word. Given that we can come up with dozens of counter-examples for every alleged pronunciation rule, and those examples include "ecycle", I just don't think anything but a historical explanation is plausible. Obviously, we are guessing at this point, but it seems a rather large coincidence that the word was imported from France and has a syllable in it that sounds closer to the French pronunciation of the root word than the English. Neither ecycle nor motorcycle were imported words, and they didn't carry over the semi-French pronunciation when the new compounds were coined.

If you know anything about vowel shifts, the change from bee to bi in the English pronunciation is quite normal, but a shift from sighcle to sickle would probably never happen in English.

You "cycle" to the store? I just ride or bike, two perfectly good one-syllable words.

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Well sure, a cyclist engages the act of cycling, which is to cycle. So I cycle to the store.

But since I've decided that it should be sicklist, I'll be changing that now to "sickle to the store".

SICKlists fare best when they are treated as drivers of vHICKils.

-mr. bill

Table, verb. Same pronunciation as the noun, but the verb is exactly opposite meaning depending on who is speaking.

-mr bill

Cleave, verb. Cling to or cut apart. Classic example of a contronym.

https://www.grammarly.com/blog/10-verbs-contronyms/

Wait...what? Y'all pronounce it differently????

Here's one for Canadians, route and router.

In U.S., route can rhyme with trout or be pronounced like root, but it's always pronounced to rhyme with trouter (if that's a word).

What's the pronunciation in Canada?

Why is it that if you blow in a dog's face they turn away, but they love hanging their head out of the car window at 45 miles per hour?

Have you tried asking them?