Meaning and Usage
"동일하다" means "to be identical" or "to be exactly the same." It is a formal adjective often used in written and spoken Korean to express that two or more things share the same characteristics, qualities, or conditions.
Common Contexts
You will frequently see "동일하다" in academic, technical, legal, or formal contexts where precision is important, such as comparing products, statements, or conditions.
Collocations and Patterns
- "동일하다 + 명사" (e.g., 동일한 조건): used to describe identical conditions or attributes.
- "~와/과 동일하다" (e.g., A와 동일하다): to say something is identical to something else.
- "의견이 동일하다": to express that opinions are the same.
Register and Politeness
"동일하다" is neutral to formal and is appropriate in formal writing, presentations, and polite conversation. It is less common in casual speech, where simpler expressions like "같다" (to be the same) might be preferred.
Common Mistake
Learners sometimes confuse "동일하다" with "같다." While both mean "to be the same," "동일하다" emphasizes exact identity or equivalence, often in formal contexts, whereas "같다" is more general and informal. Use "동일하다" when you want to stress precise sameness.