noun / verb HSK 5
Traditional
lùn
theory · thesis · to discuss · to discourse on · by (measure of rounds/bouts)

Meaning

is a versatile character that appears both as a standalone word and in many compounds. As a verb, it means to discuss or debate. As a noun, it refers to theories, theses, or discourse. It's commonly seen in academic and formal contexts.

Usage

In modern usage, rarely stands alone but frequently appears in compounds like 理 (theory), 讨 (discuss), and 言 (speech/opinion). When used as a measure word, it counts rounds or bouts (如按计算). The character carries a formal, intellectual register.

Examples

  1. 01
    我们需要讨一下这个理的可行性。
    Wǒmen xūyào tǎolùn yīxià zhège lǐlùn de kěxíng xìng.
    We need to discuss the feasibility of this theory.
  2. 02
    你说什么,我都会支持你。
    Wúlùn shuō shénme, dōu huì zhīchí .
    No matter what you say, I will support you.

Common collocations

  • lùn wén
    thesis; dissertation
  • lùn
    no matter (what/how/etc.)
  • lùn tán
    forum
  • lùn diǎn
    argument; thesis point

Origin

The traditional form combines 言 (speech) with 侖 (logical order), originally meaning to speak in an orderly, reasoned manner—hence discussion and theory.

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