"simultaneous, missile, advertisement and direct"

[Odessa Dawn]

"Most who try writing with both hands simultaneously end up with an illegible scrawl."

simultaneous /ˌsɪm.əlˈteɪ.ni.əs/ =BrE

simultaneous /samltenis,s/=AmE

missile /msl/=AmE

missile /ˈmɪs.aɪl/=BrE

direct /da ɪˈrekt/=BrE

direct /drkt,da/= AmE

advertisement/ədˈvɜː.tɪs.mənt/=BrE /ˈæd.vɝː.taɪz.mənt/=AmE


　　　　　　
Do we have a rule where vowel sound in British version is different from American version when it comes to the pronunciation of the aforementioned words. Besides, I need few words that go with simultaneous, missile, direct and advertisement.

Thank you,

[Chicken Sandwich]

Do we have a rule where vowel sound in British version is different from American version when it comes to the pronunciation of the aforementioned words.

I'm not aware of any rule that applies in this area. Besides, native speakers don't memorise rules - they know how to pronounce a word without resorting to 'rules'. I recommend that you do the same. Learn the pronunciation of each individual word - it's more difficult at first but it will actually free your brain from doing too much overthinking.

[emsr2d2]

"Missile" is certainly pronounced differently in AmE and BrE.

In BrE, it sounds like "miss-eye-ll" (the second syllable sounds like "tile"). In AmE, it's more like "miss-uhl" or "miss-ull" (rhymes with "pull"). I don't read phonetics so I don't know if that's what you put in the first post.

However, as CS said, we don't "memorise rules", we learn pronunciation as we learn to speak when we're children. We hear other pronunciations as we get older. Some people are better at noticing the differences than others.

[Raymott]

Do we have a rule where vowel sound in British version is different from American version when it comes to the pronunciation of the aforementioned words. Besides, I need few words that go with simultaneous, missile, direct and advertisement.

Thank you,

There are quite a few '-ile' words that are pronounced differently, similarly to missile - fertile, mobile, tactile, ...
In fact, I'm not sure that Americans pronouns any '-ile' words as /-aIl/

PS: I mean multisyllable words, of course. Obviously AmE doesn't use a schwa in file, mile, etc.