Thai

American  

[tahy] / taɪ /

adjective

1. Formerly Siamese.  of or relating to Thailand, its people, or their language.

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noun

plural

Thais,

plural

Thai

1. Also called Thailander.  a native or or inhabitant of Thailand, or a person of Thai descent.

2. the language of Thailand, a member of the Tai group of languages.

Thai British  

/ taɪ /

adjective

1. of, relating to, or characteristic of Thailand, its people, or their language

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noun

1. a native or inhabitant of Thailand

2. the language of Thailand, sometimes classified as belonging to the Sino-Tibetan family

Etymology

Origin of Thai

First recorded in 1800–10; from Thai; literally, “free,” a self-designation

Example Sentences

The brokerage cuts its earnings forecasts for the Thai company by 7.1% for 2026, 8.5% for 2027, and 9.0% for 2028.

From The Wall Street Journal • Apr. 10, 2026

Thai Prime Minister Anutin Charnvirakul this week sent a congratulatory message, according to Myanmar state media, saying that under Min Aung Hlaing's "able leadership" the nations' relations would "grow from strength to strength".

From Barron's • Apr. 10, 2026

Today, Royal Hill is empty, aside from the Thai soldiers occupying it.

From BBC • Apr. 6, 2026

Thai oil producer is likely to include losses related to oil hedging and foreign-exchange in its results, due to rising oil prices since the Middle East conflict broke out, the analysts say.

From The Wall Street Journal • Apr. 6, 2026

After he’d been going to Krua Thai for about a year, Sonja gently asked if he’d pose for a photo with her.

From "Endgame" by Frank Brady