確か
たしか
hepburn tashika
certain, sure, if I remember correctly
Part of speech · na-adjective / adverb
Pattern visualization
no decomposition available
Examples
- 確か今日だった。I think it was today.
- 確かな証拠。Solid evidence.
Collocations
確か (tashika, certain / I think)確かに (definitely)確かな証拠確実 (kakujitsu)間違いない
Mnemonic
Tashika (確か) is dual: (1) adverb "probably, 80 percent" — tashika kyou datta; (2) na-adjective "certain, solid" — tashika na shouko. Kanji 確. Compare: tashika ni 100 percent definitely; kakujitsu formal; zettai absolute.
Quick check
Tashika vs tashika ni?