ไซน์
saiMeaning
1NounB1
sine; sin function
The trigonometric function sine (sin), relating an angle to the ratio of the opposite side to the hypotenuse in a right triangle; also used in wave and signal analysis.
Examples
ครูkruuครูkruu1teacher2master; mentor (respectful)3classifier: คน; ท่าน (respectful)บอกว่าbɔ̀ɔk-wâaบอกว่าbɔ̀ɔk-wâa1[to] say/tell that; report/declare that2[of text/sign] say/indicate thatไซน์saiไซน์saisine; sin functionของkɔ̌ɔngของkɔ̌ɔng1of; belonging to2thing; item; stuff3property; goodsมุมmumมุมmum1corner2angle3point of view; perspective30องศาong-sǎaองศาong-sǎa1degree (temperature)2degree (angle)3degree; extent; level (fig.)เท่ากับtâo-gàpเท่ากับtâo-gàp1[to] equal; be equal to (=)2[to] amount to; be tantamount toหนึ่งnʉ̀ngหนึ่งnʉ̀ng1one (number)2a; one; a single3a certain; a particular4first; top; foremostส่วนsùuanส่วนsùuan1part; portion; section2share; quota3department; division; unit4as for; regarding5over (in fractions)สองsɔ̌ɔngสองsɔ̌ɔng1two; 22second
The teacher said the sine of a 30-degree angle equals one-half.
3 more examplesShow less
เวลาเรียนwee-laa-riianฟิสิกส์fí-sìkเราraoใช้cháiไซน์saiเพื่อpʉ̂ʉaคำนวณkam-nuuanแรงrɛɛngที่tîiตั้งฉากdtâng-chàakกับgàpพื้นpʉ́ʉn
When studying physics, we use sine to calculate the force perpendicular to the ground.
ถ้าtâaรู้rúuความยาวkwaam-yaaoด้านdâanเฉียงchǐiangและlɛ́มุมmumตรงจุดdtrong-jùtยอดyɔ̂ɔtเราraoหาhǎaไซน์saiของkɔ̌ɔngมุมmumนั้นnánแล้วlɛ́ɛoคูณkuunด้านdâanเฉียงchǐiangเพื่อpʉ̂ʉaได้dâaiด้านdâanตรงข้ามdtrong-kâam
If we know the hypotenuse and the angle at the vertex, we find the sine of that angle and multiply by the hypotenuse to get the opposite side.
คลื่นเสียงklʉ̂ʉn-sǐiangในnaiออสซิลโลสโคปɔ̀ɔt-sin-loo-sà-kôopมักmákถูกtùukประมาณbprà-maanด้วยdûuaiคลื่นไซน์klʉ̂ʉn-saiซึ่งsʉ̂ngสะท้อนsà-tɔ́ɔnความสัมพันธ์kwaam-sǎm-panระหว่างrá-wàangมุมmumเฟสféetกับgàpแอมพลิจูดɛɛm-plí-jùut
Sound waves on an oscilloscope are often approximated by a sine wave, reflecting the relationship between phase angle and amplitude.
Tones
See how the spelling sets each syllable's tone, step by step.
How the tone is decided
- Consonant classLow class
- Tone markNo tone mark
- Syllable endingLive syllableThe vowel ไ hides a final -ย, so it is live.
Low class consonants
คฅฆงชซฌญฑฒณทธนพฟภมยรลวฬฮ
Result
Mid tone
sai
Level, in your normal speaking voice.
Low class + No tone mark + Live syllable → Mid
น์ 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 | — | — |