What is the correct plural of Thai. Is it Thais??

Thai or Thais according to the American Heritage Dictionary.

http://dictionary.reference.com/browse/thai

Thai or Thais according to the American Heritage Dictionary.

http://dictionary.reference.com/browse/thai

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an american dictionary to know how to use a Thai word -???

Thai as a language does not pluralise words by adding an "s' - rather it uses collective words to describe additional items of an object

Thai as a language does not pluralise words by adding an "s'

Maybe so, but in ENGLISH the plural is Thais.

Thai as a language does not pluralise words by adding an "s'

Maybe so, but in ENGLISH the plural is Thais.

Hmmm, that may be in "English," but in American it's Thai!  At least it sure sounds better to me that way.

Mac

a Yank!

A Thai person , Many Thai people

Many Thai or many Thais.

What is not correct are hybrid constructions like Thai's - apostrophe + s denotes possession, not plural.

Hmmm, that may be in "English," but in American it's Thai! At least it sure sounds better to me that way.

Mac

a Yank!

Do you really think:

'Thai are famous for smiling' sounds better than 'Thais are famous for smiling'?

A Thai person , Many Thai people

You are using 'Thai' here as an adjective, so in your examples, it will not be pluralised.

Thai - singular

Thais - plural

A Thai person , Many Thai people

You are using 'Thai' here as an adjective, so in your examples, it will not be pluralised.

Thai - singular

Thais - plural

Absolutely correct.

By the way, it hippy the adjective for hippo?

A Thai person , Many Thai people

You are using 'Thai' here as an adjective, so in your examples, it will not be pluralised.

Thai - singular

Thais - plural

Absolutely correct.

By the way, it hippy the adjective for hippo?

Being from the latin it should be hippi.

Back on topic, if speaking or writing in the English I believe, for brevity, "Thais" is the acceptable plural over "Thai people" although the latter is probably more linguistically correct.