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理论 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
理论lǐlùntheoryHSK 5, n, 17 strokes, rank #2034, Hard
理论lǐlùnto argueHSK 5, unknown, 17 strokes, rank #2034, Hard
理论lǐlùnto take notice ofHSK 5, unknown, 17 strokes, rank #2034, Hard
lǐlùn(li3lun4)li lun T3
  1. 1theory
  2. 2to argue
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March 24, 2026

理论(理論)lǐlùn(li3lun4)

理论 (lǐlùn) refers to a systematic framework or idea used to explain phenomena, particularly in academic contexts. It is commonly used in discussions about science, philosophy, economics, and social sciences to articulate concepts and principles. The term can also imply a level of abstraction and is often contrasted with practical application.

Strokes17Frequency#2034DifficultyHard
Cultural note

In Chinese educational settings, 理论 is highly valued, often emphasized in the study of sciences and humanities. This reflects the importance placed on theoretical knowledge as a foundation for understanding practical applications.

Memory tip

Imagine a 'theory' that looks like a 'leaf' (理) and a 'run' (论) — picture a leaf running through a forest of ideas, representing the exploration of concepts. This visual can help you remember both the meaning and the pronunciation.

Meanings of 理论

lǐlùn(li3lun4)
1theory
2to argue
Exercise 1 of 2

By ear

Play it, then pick what 理论 means.

About 理论

理论Simplified
理論Traditional
17Strokes
—Radical
名词míngcínoun (n.)Part of Speech
#2034Frequency Rank
个Measure Word
HSK 2.0L5HSK 3.0L5ElementaryTOCFLL3HSKKL2CEFRA2

Podcast: 理论

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Podcast: 理论

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AI study notes for 理论

Quick Contrast

理论 (lǐlùn) vs 原理 (yuánlǐ): choose 理论 when discussing broader frameworks or systems of thought, while 原理 refers specifically to fundamental principles or laws underlying a phenomenon.

Usage Notes

Be careful not to confuse 理论 with 实践 (shíjiàn), which means practice or application, as they represent different concepts. The term is mainly used in formal settings like academic discussions, so ensure to use it appropriately in context.

HSK Study Tips

As an HSK Level 5 word, 理论 connects well with other terms related to abstract thinking and academic discourse. Students should focus on using it in sentences that relate to theories in their fields of interest, which will reinforce understanding.

Common Mistakes

Learners often mistakenly use 理论 when they mean 实践, leading to confusion about whether they are discussing theory or practice. For example, saying '我需要更多理论' when they actually mean '我需要更多实践' (I need more practice) is a common error.

AI-enhanced 2026-03-24

Pronunciation of 理论

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Component characters

理lǐtexture
HSK 611 strokes王
View full entry
论lúnopinion
HSK 56 strokes讠
View full entry

How to say theory in Chinese

“theory” in Chinese is理论lǐlùn

理论 (lǐlùn) refers to a systematic framework or idea used to explain phenomena, particularly in academic contexts. It is commonly used in discussions about science, philosophy, economics, and social sciences to articulate concepts and principles. The term can also imply a level of abstraction and is often contrasted with practical application.

When to use 理论

Be careful not to confuse 理论 with 实践 (shíjiàn), which means practice or application, as they represent different concepts. The term is mainly used in formal settings like academic discussions, so ensure to use it appropriately in context.

理论 or something close to it

理论 (lǐlùn) vs 原理 (yuánlǐ): choose 理论 when discussing broader frameworks or systems of thought, while 原理 refers specifically to fundamental principles or laws underlying a phenomenon.

What learners get wrong

Learners often mistakenly use 理论 when they mean 实践, leading to confusion about whether they are discussing theory or practice. For example, saying '我需要更多理论' when they actually mean '我需要更多实践' (I need more practice) is a common error.

Write 理论

理
论

Practice writing 理论 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Grammar patterns of 理论

理论 functions as a noun — it names a person, place, thing, or concept. Place it as a subject before the verb (主+谓) or as an object after the verb (谓+宾). Most Chinese nouns require a measure word between the number and the noun (e.g. 一个/三本). It carries 3 related meanings, each with its own usage notes below. The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.

Exercise 1 of 4

Fill the gap

Type the missing word. Pinyin works; then pick the character.

我真应该跟我这些愚蠢的朋友____理论!

I shall have words with these stupid friends of mine!

Example sentences for 理论 (10)

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1
我真应该跟我这些愚蠢的朋友理论理论!

wǒ zhēn yīnggāi gēn wǒ zhèxiē yúchǔn de péngyou lǐlùn lǐlùn!

I shall have words with these stupid friends of mine!
2
该书的目的是要让经济学理论更加简单易懂。

gāi shū de mùdì shì yào ràng jīngjì xué lǐlùn gèngjiā jiǎndān yì dǒng。

The book's aim was to make economic theory more digestible.
3
他是个坚定不移的经验论者,不屑研究理论。

tā shì gè jiāndìng bù yí de jīngyàn lún zhě, búxiè yánjiū lǐlùn。

He was an unswerving empiri-cist with little time for theory.
4
我们首先应大致看一下该理论在历史上的前身。

wǒmen shǒuxiān yìng dàzhì kàn yíxià gāi lǐlùn zài lìshǐ shàng de qián shēn。

We shall first look briefly at the historical antecedents of this theory.
5
我们总会用听起来非常高尚的理论为我们的行动辩护。

wǒmen zǒng huì yòng tīng qǐlái fēicháng gāoshàng de lǐlùn wèi wǒmen de xíngdòng biànhù。

We'll always justify our actions with noble sounding theories.
6
几年来已经有好几个类似理论相继提出。

jǐ nián lái yǐjīng yǒu hǎo jǐ gè lèisì lǐlùn xiāngjì tíchū。

Over the years several similar theories have been put forward.
7
一分实践当得十分理论.

yī fēn shíjiàn dāng de shífēn lǐlùn.

An ounce of practice is worth a pound of theory.
8
那意味着至少理论上他比他们级别高。

nà yìwèizhe zhìshǎo lǐlùn shàng tā bǐ tāmen jíbié gāo。

That meant that he, notionally at least, outranked them all.
9
纯理论研究院系即将被裁撤。

chún lǐlùn yánjiū yuàn jì jíjiāng bèi cái chè。

Academic departments are being eliminated.
10
埃米发现理论和笔头作业对她来说十分容易。

āi mǐ fāxiàn lǐlùn hé bǐ tóu zuòyè duì tā lái shuō shífēn róngyì。

Amy discovered that the theoretical and written work came easily to her.

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Frequently asked questions about 理论

You can use it in sentences like '理论上,这是可行的' (In theory, this is feasible).

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