Meaning and Usage
"確実" (かくじつ) means certainty or reliability. It is used to describe something that is sure, dependable, or guaranteed. It often appears in formal or neutral contexts.
Common Collocations
- 確実に (かくじつに): certainly, surely — used to emphasize certainty.
- 確実な情報 (かくじつなじょうほう): reliable information — used when stressing trustworthy data.
- 確実な方法 (かくじつなほうほう): sure method — a method guaranteed to work.
Usage Notes
When using 確実, speakers imply a high level of confidence or guarantee about the subject. It is often contrasted with words like "可能" (possible) or "不確実" (uncertain).
Learners sometimes confuse 確実 with "確か" (たしか), which means "if I remember correctly" or "certainly" but is less formal and more subjective. 確実 is more objective and stronger in meaning.
Use 確実 when you want to express that something is dependable or guaranteed, especially in business, academic, or technical contexts.