ยีสต์
yíitMeaning
yeast (baking/fermentation microorganism)
a single-celled fungus used to make dough rise and to ferment foods and beverages (e.g., bread, beer)
Examples
3 more examplesShow less
Tones
See how the spelling sets each syllable's tone, step by step.
Why is ยีสต์ said ยี้ด?
yíit
- Final soundAt the end of a syllable, ส is said like ด (t).Silent letterต์ is silent: the ◌์ mark cancels its sound.Spoken toneSaid with a High tone in everyday Thai, as if written ยี้ด (yíit). The spelling rule would give a Falling tone.
The tone rules below use the spoken syllables.
How the tone is decided
- Consonant classLow class
- Tone markNo tone mark
- Syllable endingDead syllableLong vowelEnds in -ส, a stop, so it is dead.
Low class consonants
คฅฆงชซฌญฑฒณทธนพฟภมยรลวฬฮ
ResultSpoken tone
High tone
yíit
Starts high and keeps climbing.
Spelling rule: Low class + No tone mark + Dead syllable · Long vowel → Falling
Spoken tone Said with a High tone in everyday Thai. The spelling rule would give a Falling tone, but this loanword follows how it's actually pronounced. Say it as if written ยี้ด (yíit).
ต์ is silent here.
Tone chart
Every class and spelling pattern, with this syllable outlined.
| Mid class | High class | Low class | |
|---|---|---|---|
| No mark + live | Mid | Rising | Mid |
| No mark + dead short | Low | Low | High |
| No mark + dead long | Low | Low | Falling |
| Mai ek | Low | Low | Falling |
| Mai tho | Falling | Falling | High |
| Mai tri | High | — | — |
| Mai chattawa | Rising | — | — |
The chart shows the spelling rule. In everyday Thai, this syllable is said with a High tone instead.