สมอ.

sŏr-mŏr-or

Meaning

1NounB2

Thai Industrial Standards Institute

abbreviation for the Thai Industrial Standards Institute (TISI), the government agency responsible for national industrial standards in Thailand

Examples

Every helmet you buy must have a certification mark from TISI for safety.
3 more examples

Tones

See how the spelling sets each syllable's tone, step by step.

Why is สมอ. said สอ-มอ-ออ?

sŏr-mŏr-or

The tone rules below use the spoken syllables.

3 syllables · pick one to see its rule

How the tone is decided

  1. Consonant classHigh class
  2. Tone markNo tone mark
  3. Syllable endingLive syllableA long vowel with no final consonant, so it is live.

High class consonants

ขฃฉฐถผฝศษสห

Result

Rising tone

sŏr

Dips low first, then rises clearly.

High class + No tone mark + Live syllable → Rising

Tone chart

Every class and spelling pattern, with this syllable outlined.

Mid classHigh classLow class
No mark + liveMidRisingMid
No mark + dead shortLowLowHigh
No mark + dead longLowLowFalling
Mai ekLowLowFalling
Mai thoFallingFallingHigh
Mai triHigh——
Mai chattawaRising——
Work out any syllable's tone in the tone calculator