ทฤษฎี(trít-sà-dee)

Meanings

1NounB2

theory (explanatory system)

a coherent system of ideas intended to explain phenomena, grounded in principles and evidence; contrasted with practice

Examples

อาจารย์aa-jaanอาจารย์aa-jaan1teacher; instructor; professor (esp. tertiary)2honorific/title for a teacher3master (spiritual/martial/arts)อธิบายà-tí-baaiอธิบายà-tí-baai1[to] interpret; expound2[to] explain; clarifyทฤษฎีtrít-sà-deeทฤษฎีtrít-sà-dee1theory (explanatory system)2theory (general principle)3theory (speculative idea)ที่têeที่têe1place; spot; seat; space2that/which/who (relative marker)3at; in; to (before place/recipient)4when; the time that (time marker)5ordinal/degree marker6classifier: place/seat/slotใช้cháiใช้chái1[to] use; employ2[to] spend (money); pay; expend3[to] require; take (time/effort/amount)4[to] order; command (someone to do) [colloq.]5be acceptable/valid; okay [set phrase]อธิบายà-tí-baaiอธิบายà-tí-baai1[to] interpret; expound2[to] explain; clarifyพฤติกรรมผู้บริโภคpréut-dtì-gam pôo bor-rí-pôhkพฤติกรรมผู้บริโภคpréut-dtì-gam pôo bor-rí-pôhkconsumer behaviorก่อนgònก่อนgòn1before; earlier; previously; first2previous; prior; formerลงมือทำlong meuu tamลงมือทำlong meuu tam1[to] start doing; take action; get down to work2[to] carry out; execute; implementแบบฝึกหัดbàep fèuk-hàtแบบฝึกหัดbàep fèuk-hàt1exercise(s); practice task(s) (in books/worksheets)2practice drill/training exercise
The teacher explained the theory used to explain consumer behavior before doing the exercises.
2NounB2

theory (general principle)

a general principle or set of principles describing how something works

Examples

ทฤษฎีtrít-sà-deeทฤษฎีtrít-sà-dee1theory (explanatory system)2theory (general principle)3theory (speculative idea)แรงโน้มถ่วงraeng nóhm tùuangแรงโน้มถ่วงraeng nóhm tùuanggravity; gravitationอธิบายà-tí-baaiอธิบายà-tí-baai1[to] interpret; expound2[to] explain; clarifyหลักการlàk gaanหลักการlàk gaan1principle; fundamental rule2principle; rationale; theoretical basisทั่วไปtûua bpaiทั่วไปtûua bpai1general; common2widespread; prevalent3public; for general access4generally; usually; in generalว่าwâaว่าwâa1[to] say; tell; say that2[to] think; consider; deem3that (clause marker)4about; regarding5[to] scold; reproach; criticizeทำไมtam maiทำไมtam mai1why (question word)2why (expressing disbelief/complaint)วัตถุwát-tùวัตถุwát-tù1object; thing (physical)2material; substance3object; object (grammatical)ถึงtĕungถึงtĕung1to; toward (recipient/goal)2even; so ... that; to the point that3as far as; concerning (formal)4to; until; up to5[to] arrive; reach6even if; even thoughตกลงdtòk longตกลงdtòk long1[to] agree; reach an agreement2okay; agreed; deal3in the end; after all; as it turns out4[to] settle; finalizeสู่sòoสู่sòo1to; toward(s); into (formal/literary)2[to] enter; go toward (literary)พื้นpéunพื้นpéun1floor2ground; base surface; bottom3basis; level; background (figurative)4background (color/pattern)
The theory of gravity explains the general principle of why objects fall to the ground.
3NounB2

theory (speculative idea)

an explanation or idea that is not yet proven; a hypothesis in everyday use

Examples

เขาkăoเขาkăo1he; him2she; her3they; them (context-dependent)4horn5mountain; hillมีmeeมีmee1[to] have; possess2there is/are; exist3[to] experience; undergoทฤษฎีtrít-sà-deeทฤษฎีtrít-sà-dee1theory (explanatory system)2theory (general principle)3theory (speculative idea)ว่าwâaว่าwâa1[to] say; tell; say that2[to] think; consider; deem3that (clause marker)4about; regarding5[to] scold; reproach; criticizeถ้าtâaถ้าtâa1if; in case2if only; provided that (conditional emphasis)อ่านหนังสือàan năng-sĕuอ่านหนังสือàan năng-sĕu[to] read; [to] studyตอนเช้ามืดdton cháo mêutตอนเช้ามืดdton cháo mêutearly dawn; before sunriseจะจะ1will; shall (future/intention marker)2about to; going to (near future, often w/ กำลังจะ)3then; would (result in conditionals)จำjamจำjam1[to] remember; recall2[to] memorize3[to] recognizeได้ดีขึ้นdâai dee kêunได้ดีขึ้นdâai dee kêun1[to] improve; get better2[to] be better off; become more successful3better (than before)แต่ยังdtàe yangแต่ยังdtàe yangbut still; yetไม่เคยmâi koieไม่เคยmâi koienever; have neverลองlongลองlong1[to] try; attempt2trial; test (attempt) [rare as standalone]พิสูจน์pì-sòotพิสูจน์pì-sòot1[to] test; [to] try out2[to] proofread3[to] prove; [to] verifyจริงjingจริงjing1really; truly; indeed2truth; reality (rare as noun)3true; real; genuine4[!] intensifier particle (final)
He has a theory that reading at dawn helps memory, but he hasn't tried to prove it yet.