DICTIONARY · CC-CEDICT

一一對應

简一一对应 · 繁一一對應

Mandarin · pinyin yī yī duì yìng

one-to-one correspondence

Full entryShow on map

Characters in this entry

一: yī · one; a, an; alone
對: duì · correct, right; facing, opposed
應: yīng · should, ought to, must
对: duì · correct, right; facing, opposed
应: yīng · should, ought to, must

Written characters and their own readings; the entry’s pronunciation is shown above.

Explore the spelling

Mandarin tones

1–1–4–4 · yi1 yi1 dui4 ying4

Compare attested words with these syllables ↗

Dictionary tones. Connected speech can change their realization.

Connected dictionary

5character links

Explore word families ↗Compare pronunciations ↗Open character structure ↗

Counts describe dictionary records, not word frequency or semantic similarity. Source identities stay separate.

Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

一一對應 · find source passages ↗ · 一一对应 · find source passages ↗

Explore Classical grammar ↗

Compare dictionary sources Wiktionary · 1 sense

Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

noun

(mathematics) one-to-one correspondence

Source page · dump 2026-09-02 · Contributors & history

Wiktionary contributors · CC BY-SA 4.0 · source & license · Data pack