This is the 2nd most frequent Thai word.
ท
The Thai letter "ท" (tho thaw) is the 21st consonant in the Thai alphabet, representing the "t" sound at the start and the "d" sound at the end of a syllable.
In this sentence, "ท" is used as part of the name of an organization, specifically "ททท" which stands for 'Tourism Authority of Thailand' in Thai.
ทททเป็นบริษัทการท่องเที่ยวที่มีชื่อเสียงในไทย
TAT is a renowned tourism company in Thailand.
Here, 'ท' appears as part of the word 'ทันที' (immediately), where it contributes to the meaning of urgency or instant action.
แมวกระโดดจากต้นไม้ลงมาทันที
The cat jumped from the tree immediately.
In this sentence, 'ท' serves as an abbreviation for the conjunction or word used in colloquial speech to connect sentences informally, similar to 'but' or 'and' in this context.