When do I use 比 vs 对 for scores?

For numerical scores like '3 to 2', always use 比 (三比二). 对 is sometimes heard in informal speech but is considered non‑standard. For stating who plays whom (e.g., 'Team A vs Team B'), use 对 (A对B).

Can I use 对 to compare two things, like 'A is better than B'?

No. 对 does not express a difference in degree. To say 'A is better than B', use 比: A比B好. 对 only marks opposition or a matchup.

What about phrases like 'compared to' – is that always 比?

Yes, 比 is the standard word for 'compared to' in comparative sentences. However, in other contexts like 'in comparison with', you might also see 跟...相比 or 同...相比, but 比 alone is sufficient for most comparisons.

Do 比 and 对 have other meanings that could overlap?

They rarely overlap. 比 also means 'ratio' (比例) and 'to compare' (比较). 对 has many other meanings: 'toward' (对我微笑), 'correct' (不对), 'opposite' (对面), and 'pair' (一对). Only in the 'vs' context of scores/matchups is there potential confusion; otherwise their uses are distinct.

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比 vs 对 (bǐ vs duì): comparison and score expressions

Both 比 (bǐ) and 对 (duì) can appear in contexts involving two items, but they serve different functions. 比 is the standard comparative marker for qualities (e.g., A比B大) and also expresses scores as ratios (e.g., 3比2). 对 indicates a matchup or opposition between two sides (e.g., A对B) and is common in sports, debates, or pairing, but it does not express qualitative comparison. The key choice is whether you are comparing differences (use 比) or stating which two sides face each other (use 对).

The primary function of 比 is to compare two things and express a difference (e.g., 他比我高 'He is taller than me'). It also appears in stating ratios or scores, where it means 'to' (e.g., 三比二 'three to two'). 对, on the other hand, is used to indicate a contrast or matchup between two entities, typically in competitions, debates, or pairing contexts (e.g., 甲队对乙队 'Team A vs Team B'). 对 cannot be used to express qualitative comparisons (e.g., 'A is taller than B')—that requires 比. Understanding this distinction avoids confusion between comparative and score/matchup expressions.

Wann man was verwendet

比bǐ

compared to; to (in scores/ratios)

Use 比 to compare two things and show a difference in degree or quality (e.g., A比B + adjective). It is also the standard word for expressing numerical scores or ratios (e.g., 2比1 'two to one'). In both uses, 比 places the two items in a relationship where one is measured against the other.

When stating a score, 比 is the default word; 对 is rarely used for exact numbers. However, 比 can also appear in non‑competitive contexts (e.g., 比例 'ratio') whereas 对 is limited to direct opposition.

对duì

versus; as opposed to; opposite

Use 对 to indicate a matchup or opposition between two sides, often in sports, games, debates, or pairings (e.g., A对B meaning 'A vs B'). It does not convey a comparison of qualities or a numerical score—it simply marks which two entities are facing each other. 对 can also mean 'opposite' or 'against' in phrases like 对手 (opponent).

In spoken Chinese, 对 sometimes substitutes for 比 in score announcements (e.g., 三对二), but this is less formal and mostly limited to certain dialects or contexts. Standard written Chinese prefers 比 for scores.

Auf einen Blick

	比	对
Primary function	Compare differences (e.g., A比B大)	Indicate a matchup/opposition (e.g., A对B)
Qualitative comparison	Yes (core function)	No (cannot mean 'A is more X than B')
Numerical scores (e.g., 3:2)	Yes (standard usage, e.g., 三比二)	Rare and non‑standard; use 比 instead
Matchup labels (e.g., team A vs team B)	Possible but informal (e.g., 中国比美国 technically possible but not idiomatic)	Yes (preferred, e.g., 中国对美国)
Grammatical pattern	A比B + adjective/verb phrase	A对B (no adjective or degree implied)

Beispiele

比
她比我高。
Tā bǐ wǒ gāo.
She is taller than me.
Qualitative comparison – use 比, not 对.
比
比分是二比一。
Bǐ fēn shì èr bǐ yī.
The score is two to one.
Numerical score – always 比.
对
明天的比赛是北京队对上海队。
Míng tiān de bǐ sài shì běi jīng duì duì shàng hǎi duì.
Tomorrow's game is Beijing team versus Shanghai team.
Matchup label – 对 is natural here.
对
辩论赛是正方对反方。
Biàn lùn sài shì zhèng fāng duì fǎn fāng.
The debate is the affirmative side versus the negative side.
Opposition in a competition – use 对.
对
他对我不错。
Tā duì wǒ bú cuò.
He treats me pretty well.
Here 对 means 'toward, to' – a different usage, not for comparison or score.

Häufige Fehler

Using 对 to compare qualities: e.g., 我对他高 (correct: 我比他高).
Using 比 for a non‑score matchup: e.g., 中国比日本 (should be 中国对日本 if meaning 'vs').
Confusing 比 with 给 (gěi) in score context: e.g., saying '3给2' instead of '3比2'.
Switching to 对 for a numerical score: e.g., 三对二 – non‑standard in formal writing; use 三比二.

FAQ

When do I use 比 vs 对 for scores?: For numerical scores like '3 to 2', always use 比 (三比二). 对 is sometimes heard in informal speech but is considered non‑standard. For stating who plays whom (e.g., 'Team A vs Team B'), use 对 (A对B).
Can I use 对 to compare two things, like 'A is better than B'?: No. 对 does not express a difference in degree. To say 'A is better than B', use 比: A比B好. 对 only marks opposition or a matchup.
What about phrases like 'compared to' – is that always 比?: Yes, 比 is the standard word for 'compared to' in comparative sentences. However, in other contexts like 'in comparison with', you might also see 跟...相比 or 同...相比, but 比 alone is sufficient for most comparisons.
Do 比 and 对 have other meanings that could overlap?: They rarely overlap. 比 also means 'ratio' (比例) and 'to compare' (比较). 对 has many other meanings: 'toward' (对我微笑), 'correct' (不对), 'opposite' (对面), and 'pair' (一对). Only in the 'vs' context of scores/matchups is there potential confusion; otherwise their uses are distinct.