仮定

かてい

assumption, supposition, hypothesis

JLPT N3

Character Breakdown

Meaning and Usage

The word (jiǎdìng) means 'assumption' or 'hypothesis' and is commonly used in both everyday and academic contexts. It refers to a premise or condition accepted temporarily for the sake of argument or investigation.

Common Contexts

is often used when discussing hypothetical situations, scientific theories, or logical reasoning. For example, when planning or analyzing, people make to explore possible outcomes.

Collocations and Patterns

  • (make an assumption): used when proposing a hypothetical premise.
  • (based on an assumption): indicates that something relies on a certain premise.
  • 错误 (wrong assumption): highlights that the premise is incorrect.

Usage Notes

is more formal and precise than casual words like 假 or 猜. It is often found in written language, scientific papers, and formal discussions. Avoid confusing it with (to decide) alone; specifically implies a provisional or hypothetical condition.

Example Sentences

Let's first make an assumption that it will rain tomorrow.

In scientific research, hypotheses are the foundation for proposing theories.

This plan is based on a wrong assumption.