Again & rain
To me they rhyme but to some they don’t
I find this quite interesting as my Dad writes poetry
Is it possible to spell how you would say them?
What other words don’t rhyme to you?
or what do, but are spelt wrong
No taking the micky out of other peoples accent
(oh that was so bossy) 
I come from Norn Iron, where the word “again” rhymes with “peon”. In Norn Iron, both “rain” and the second syllable in the word “again” are diphthongs. In Received Pronunciation they are monothongs.
“Rain” rhymes with “Ian”. Another reason why I left off using that name and stuck with “Fred”. My sisters calling me “Ian the Pain” (which also rhymes in Norn Iron) had nothing to do with it.
Once upon a time a customer left a message with me for my (English) boss. I had written the name as “Carol Bea” which was exactly what it sounded like. He twitted me about it, saying her name was “Carol Beer”.
I replied “I’m not the one with the speech impediment.”
And then there’s
There was a young man from Ealing
Endowed with such exquisite feeling
When a notice he saw
“Please don’t spit on the floor”
He jumped up and spat on the ceiling.
In the South East of England, “saw” rhymes to “floor”. Nowhere else in the British Isles.
In the nineteen-sixties, there was a singer called Sandie Shaw.
I did not understand that her name was a jocular play on words until I came to the South-east of England. “Sandie Shore!” Ho ho! The people here are so provincial.
For me* rain rhymes with spain, plane, plain, main, cane, wane, grain…
“Again” is harder. The first syllable is an “uh” sound. The second syllable (“gain”) would rhyme with when, ten, Ben, den, Zen, hen…
* Dialect background: General nonspecific American accent with western NY state tendencies and a smattering of western state experiences, and five years of influence in London but I don’t think that’s affected these words.
Edited to add - excellent recycling of that limerick, IB!
Rumours that I incited Pammy to start this thread are entirely without foundation. 
We’ve got to meet up sometime so you can demonstrate exactly how “again” and “peon” can rhyme - they’re completely different for me!
avanutria and I say “rain” and “again” the same way.
“hour” and “our” supposedly sound the exact same in some parts of the world. not here. “hour” rhymes with “flower” and “tower”. “our” sounds just like the letter of the alphabet “R” and “are”.
Possibly as a result of my many moves, I say “our” both to rhyme with “flower” and to rhyme with “are”. Haven’t noticed a pattern for use but haven’t really been looking either. I think I’m more likely to say it as “are”.
You have to listen to some Norn Arush people - painful though that may be. Clench your teeth, don’t move your jaw and speak as gutteral as you can through your nose.
I am from Nothern Ireland bein’
And I’ll say it wance and wance ageon,
I’m nor a peasant nor a peon
But a city bai well used to reon.
Another confusing diphthong is “real”. It’s “reeyull”. Oddly, this is the way the Southeast English pronounce “feel” : “feeyul”. But you can’t rhyme “real” with “feel” in either accent.
Haha, thanks for that rhyme, I can hear it now!
I do the same sometimes. Usually it sounds
like “are”, but if I’m really enunciating, or
stressing a point, it rhymes with “flour”.
I like the ant/aunt debate. That one seems
almost haphazard.
Again and rain do not rhyme for me. The “ai” in again is more like a short “e” sound rather than a long “a”. Makes for interesting spelling with the Izzlets, that’s for sure 
Another one that is different here is been. I say “Ben” (rhymes with “When”) rather than with the long “e” sound. I actually don’t understand why we say it with the short “e” here in the states, because phonetically speaking it should be the long “e”.
My accent is much like Beth’s, minus the western New York part, and adding a smidgen of Philadelphia, depending upon whom I am speaking to at the moment. Most people can’t really place me in terms of my accent, but I do use terms that are very Northeast US or New England (also northeast US, but a very specific section of the northeast).
For me, dawn has a bit of a Philly flair. Instead of just “don”, I put some emphasis on the “aw” sound. Mine isn’t quite as thick as someone from the area, though. I’ve been away from it for too long, I think.
Pammy, if your Dad is having trouble with rhymes, he might like to consider “Perversion of Rhyme”. The textbook example is by Wilfred Owen. Another approach would be to try the verse form “sestina”. There are a few Sestina Groups on the net.
I may start a fan club for IB. How interesting, and I am being sincere. Accents are fascinating.
Oddly enough, I pronounce been the same way that I pronounce bin, although it sounds perfectly normal either way. It would sound unusual to me if I heard it pronounced like bean.
This is fantastic. I never realised that there was so much talent here. I love the poems
IB do the ends of those lines rhyme to you? What an interesting poem
The ones of avanutria rhyme for me.
They are the same herebouts too. Interesting.
Here ageon and rayeen (again & rain) never would rhyme.