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I am looking for a minimal triple for a particular set of phonemes. By minimal triple, I mean three actual English words that differ in one and only one phoneme between them. Examples therefore include:

  • phony, tony, pony
  • swim, swam, swum
  • bad, bat, bath

The three phonemes that must appear one apiece in each of the three words are: /ɑ, ɒ, ɔ/. I can get pairs, but no triples, and I wonder why.

Length doesn’t count, so for example /aː/ counts as /a/ and /ɔː/ counts as /ɔ/.

If such a triple exists, what is it?

If no such triple exists, could it? Or do the various mergers preclude a threefold phonemic distinction here?

These have all to be in the same accent, of course. And preferably a rhotic one, too, because I’m trying to figure out something in particular about phonemic perception in rhotic speakers of North America, and non-rhotic accents will not further that goal.

As a last resort, if the only such triple you can find is a non-rhotic one, then go ahead and offer that one, perhaps along with some suggested explanation why there “can’t” be an equivalent rhotic triple.

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For clarity: /ɑ, ɒ, ɔ/ is approximately the PALM, CLOTH, THOUGHT vowels of RP? –  Mark Beadles Aug 8 '12 at 1:47
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@MarkBeadles Yes, I think so, but I don’t myself have an /ɑ/ in any of them, so I may be a poor example. /ɑ/ is like a Latin/Romance a, with no rounding at all. I round all those three lexical sets. This is the best site I know for regional English accents from all over Britain and beyond, along with sound clips and IPA. –  tchrist Aug 8 '12 at 1:57
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baa-ed (like a sheep), bod (sweet one on that chick), bawd? OR ahs (oohs and...), Oz, awes –  StoneyB Aug 8 '12 at 2:23
    
alms, oms, ohms? –  JAM Aug 8 '12 at 2:25
    
pom, Pom, palm, poem? –  MετάEd Aug 8 '12 at 2:26

5 Answers 5

up vote 10 down vote accepted

For RP, doesn't khan, con, corn work?

If you allow widely-known foreign foods, how about pawed, pod, pad, where pad is as in pad thai (and that one even works for rhotic accents).

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I think you win. Pawed, pod, pad are very attractive. It takes a lot of conscious effort to generate three different phonemes there, for me personally. I keep wanting to merge either pawed with pod or else pod with pad, although never all three the way the LA (well, SoCal/LoCal) accent does. The difference between pawed and pod is pretty subtle for me; I must be keying on roundedness without caring how much. That’s the thing I was trying to track down. Are they all 3 distinct for you? You’re a Massachusetts native, or import? Boston, or elsewhere? –  tchrist Aug 8 '12 at 3:27
    
I'm an import, and I pronounce pad and pod the same, but pawed is distinct. With a Boston accent (I just realized), pod and pawed are pronounced the same but pad is distinct. I may have been living here long enough that I think of all three as distinct. So maybe I don't win. –  Peter Shor Aug 8 '12 at 3:41
    
My hypothesis is that there is no North American accent with more than two out of three distinct words in pawed / pod / pad. I have two, and you have two, and people with the cot–caught merger have only one. You win because you have picked a good triple to test this hypothesis with. That’s just what I was looking for, even if it isn’t a threefold distinction for me personally. –  tchrist Aug 8 '12 at 3:43
    
This answer helped me better understand the O.P.'s question. I pronounce "pawed" and "pod" as homophones; I'd pronounce "I pawed my iPod" the same as "iPod my I pawed" (though only the former would be sensical). –  J.R. Aug 8 '12 at 9:48
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I've always heard the "pad" as in "pad thai" pronounced the same as any other "pad"; that is, with /æ/. –  nohat Oct 26 '12 at 22:09

I'm betting you can find this in a Scottish or Irish English accent. I'm no expert, but I would suggest looking at cat/caught/cot as a possible triple of those vowels. You'd have to find one that escaped the caught/cot merger, and that has a rather back variant of the BATH vowel. To wit:

cat /kɑt/
caught /kɒt/
cot /kɔt/

In addition, most Scottish and Irish English dialects are rhotic.

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I thought everyone had cat as /kæt/? It’s hard to find a for-sure /ɑ/; for example, I think most people fuse either baa-ed with bod, or else fuse bod with bawd; I don’t know if anyone has all three. I’ve played around with imported words like like khan, bhaat, phaal, trying to get something that won’t merge without requiring a nonrhotic accent to get there. I know only some Scots accents, and not enough Irish ones, myself. I know there are a lot more than any I have ever heard, from that page I linked to. –  tchrist Aug 8 '12 at 2:37
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That page is what made me think of it ... some of the Scottish dialects, e.g. Hawick, don't seem to have an /æ/ at all. –  Mark Beadles Aug 8 '12 at 2:43
    
Well, that’s interesting! –  tchrist Aug 8 '12 at 2:44
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My East Alabama dialect distinguishes the ɑ-set from the ɒ-set in my triples above mostly by length, but there's a definite front glide at the end of the latter. And the 'mid-Atlantic' dialect I was formally taught as an actor distinguishes all three on dictionary lines - artificial, perhaps, but wholly appropriated by long use. –  StoneyB Aug 8 '12 at 2:56
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Mine is a fairly mild Scottish accent, with more than a hint of RP, and to me cat, caught and cot sound entirely distinct, as do khan, con and corn and pawed, pod and pad. –  Rory Alsop Aug 8 '12 at 8:44

I have found the following triple, which however is only valid for non rhotic accents :

bard /bɑːd/
bod /bɒd/
baud /bɔːd/
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I had already thought of non-rhotic cart / cot / caught but that didn’t help me because I’m rhotic. I can’t believe how much trouble I have hearing ɒ vs ɔ; I have to think about it really, really hard to generate or perceive a distinction between those. Certainly rounding-vs-nonrounding is phonemic for me, but the degree of rounding may not be. –  tchrist Aug 9 '12 at 13:36
    
@tchrist: I believe /ɒ/ and /ɔ/ are allophonic in General American, which may be why you're having trouble hearing the difference; they certainly seem to be for me. My /ɔ/ covers a fairly wide range, depending on the following vowel; close to /ɒ/ for claw, and close to /o/ for cloth, so awful and often (or offal, a word I almost never use) have a significant difference in their vowels, since the first has the vowel of awe and the second of off. So I generate the two vowels without even having to think about it, but I find it hard to hear the difference. –  Peter Shor Aug 9 '12 at 13:49
    
@PeterShor I bet that’s it. BTW, my awful, often, off, and awe all have a fairly “long” /ɔː/, and are completely identical in their starts for me. And awl and all are homophones with the same vowel as the other four; they sound nothing like the a in German alle or Spanish María, the way they seem to for many SoCal speakers, who’ve lost all rounding. –  tchrist Aug 9 '12 at 13:51
    
And of course, I meant following consonant above, if you haven't already figured it out. My claw and my cloth would probably count as two different vowels if my clause wasn't halfway in between them. –  Peter Shor Aug 9 '12 at 14:13

Do these work?

Sawed, sod and Sade. (Sade being the last name of Marquis de Sade.)

Bought, bot and Baht. (Baht being the currency of Thailand.)

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I believe I’ve just discovered something that sheds light on this mystery. Peter Shore kindly pointed out this vowel chart, in which figure the following two charts (amongst others).

First, the American one:

American vowel chart

And now the British one:

British vowel chart

This probably explains why it’s so hard for me to find a minimal triple, since General American has only two vowels there, not three. So the reason I could not find a minimal triple is because there cannot be one in General American. We just don’t have that phoneme.


Making this answer Community Wiki so that I don’t gain reps from answering my own question.

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Just to make it clearer, can you say what 'there' is? (which items labeled in the two diagrams are you referring to? and which corresponding lexical sets? hot/pot, caught, .. which are which two? –  Mitch Jan 14 '13 at 21:43
    
@Mitch Sure. I was looking for a minimal triple amongst /ɑ, ɒ, ɔ/. But it looks like GA doesn’t even have all three of those. –  tchrist Jan 14 '13 at 22:29

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