一定

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Character Breakdown

Usage of 一定

The word 一定 (yī dìng) is a versatile adverb and adjective in Mandarin Chinese. It is commonly used to express certainty or strong determination, similar to "definitely" or "must" in English. For example, when telling someone they must do something, 一定 emphasizes obligation or assurance.

As an adjective, 一定 means "certain" or "fixed," often used to describe a specific level or amount, such as 一定 (a certain level of difficulty).

Common Collocations

Nuances and Tips

Using 一定 before verbs adds emphasis on certainty or obligation, often stronger than just or alone. It is polite but firm.

When used as an adjective, 一定 modifies nouns to indicate a defined or limited scope, often in formal or written contexts.

Avoid confusing 一定 with 可能 (possible) or 大概 (probably), as 一定 implies no doubt or strong determination.

Summary

一定 is essential for expressing certainty, obligation, or fixed amounts in Mandarin. It appears frequently in daily conversation and formal speech, making it a high-utility word for learners.

Example Sentences

You must definitely finish your homework on time.

The weather forecast says it will surely rain tomorrow.

This problem has a certain level of difficulty.

He will definitely come to join our party.

We must definitely keep in touch.