Before /win/ closes down again, I also want to share an even less intuitive feature of English: homographs that are pronounced differently based on word class.
For example, verbs in English regularly take the -ed ending for their past tense and participle conjugations, but there are also several words where an identical ending was historically used to create adjectives. For whatever reason the latter remain fully enunciated while the former has been simplified, and due to even more historical happenstance there now exist several words that are written the same but pronounced differently depending on what role it is fulfilling:
Cursed = cursid, or curs't
Blessed = blessid, or bless't
Other pairs are learned, crooked, but it seems winged, supposed, and peaked have been neutralized. Something weird's going on with alleged, it seems that one's actually a new development by analogy. Then there's the similar naked, ragged, rugged, wicked, jagged, legged which I'm not confident in grouping here, and the cases of beloved and sacred where the original verb is obsolete and only the adjective remains. This still overlaps with common participles being used as adjectives, like bored from bore, which has a regular pronunciation.
Then there's <-ate>, which can be either /eɪt/ or /ət/. The verbs it's present in always have a long vowel, while with adjectives and nouns it's a tossup, no way to tell as far as I know. Richard Eaton, some 80 years old historian I just learned of, says Persianate with a schwa, while Latinate I've seen listed mainly with FACE even though you'd expect them to sound the same given how similar they are. (A younger speaker does use FACE for both.) It's possible /eɪt/ is becoming more common over time and as the spelling that makes sense, and which regularly applies to all chemicals bearing it.
Here some pairs you can find are graduate, incarnate, duplicate, correlate, (in)discriminate, elaborate, laminate, deliberate, federate, initiate, intermediate, moderate, and syndicate. Apostate appears to be pronounced both ways, maybe, but I don't know if that's tied to word class. I'm sure there are more though.
The most interesting one are those that are actually derived from each other. English has a method to derive nounds and adjectives from verbs, which consist of moving stress towards the start of the word. Take this set of original verbs: disCOUNT, inSULT, and imPORT, whose stress-derived nouns a
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