たし
確
　
か

adjectival noun or quasi-adjective, noun

  1. sure, certain, positive, definite.
  2. reliable, trustworthy, safe, sound, firm, accurate, correct, exact.

adverb

  1. If I'm not mistaken, If I remember correctly, If I remember rightly.

Variations

Pronunciation Kanji Kana Is Common
たし
確
　
か
 確か たしか ✔
たしか
確
 確 たしか
たし
慥
　
か
 慥か たしか

Contained Kanji Breakdown

assurance, firm, tight
たし.か　カク　コウ (5th, N3)
stone
いし　セキ　シャク (1st, N3)
left hand, cliff(厂) variant
mouth
くち　コウ　ク (1st, N4)
bird flying, high ambition
コク　カク　あ.がる
wa-shaped crown radical (no. 14)
ベキ (Kentei 1)
bird, old bird radical (no. 172)
サイ　スイ　とり (Kentei 1)
human radical (no. 9)
lord, chief, master
シュ　あるじ　ぬし (3rd, N4)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)
king, rule, magnate
オウ　-ノウ　おお (1st, N3)
one, one radical (no.1)
イチ　いっ　ひと- (1st, N5)