• 確約かくやく

  firm promise, definite promise

• 確執かくしつ

  discord, antagonism

• 確固かっこ

  firm, unshakeable, resolute

• 確立かくりつ

  establishment, settlement

• 確信かくしん

  conviction, belief, confidence

• 確率かくりつ

  probability, likelihood, chances

• 確定かくてい

  decision, settlement, confirmation, establishment

• 確保かくほ

  securing, obtaining, ensuring, guarantee, maintaining

• 確実かくじつ

  certain, sure, definite, reliable, sound, solid, safe, secure

• 確認かくにん

  confirmation, verification, validation, review, check, affirmation, identification

• 確かたしか

  sure, certain, positive, definite

• 確りしっかり

  tightly (holding on), firmly, securely

• 正確せいかく

  accurate, correct, precise, exact

• 的確てきかく

  accurate, precise, exact, appropriate, apt, right

• 当確とうかく

  projected to win, sure to be elected, home free

• 明確めいかく

  clear, precise, definite, distinct

• 再確認さいかくにん

  reaffirmation, reconfirmation, revalidation

• 不確かふたしか

  unreliable, uncertain, indefinite, unclear

• 不確実ふかくじつ

  uncertain, unreliable, inauthentic, insecure

• 確かめるたしかめる

  to make sure, to check, to ascertain, to confirm, to verify

• 確かく

  certain, definite

• 確答かくとう

  definite answer

• 確度かくど

  degree of accuracy

• 確然かくぜん

  definite, positive

• 確言かくげん

  assertion, confirmation

• 確説かくせつ

  established theory

• 確知かくち

  ascertainment, certain knowledge

• 確聞かくぶん

  learn from reliable sources

• 確報かくほう

  definite report, confirmed data

• 確診かくしん

  certain diagnosis, clear diagnosis, definitive diagnosis

• 確守かくしゅ

  strict adherence, sticking to, steadfast defence

• 確としかと

  certainly, for sure

• 確証かくしょう

  conclusive evidence, positive proof, definite proof, confirmation

• 確変かくへん

  system by which hitting a certain jackpot increases the probability of hitting the next jackpot (on prepaid card pachinko machines)

• 精確せいかく

  detailed and accurate, exhaustive and precise, meticulous, finely detailed

• 年確ねんかく

  age verification

• 確実度かくじつど

  certainty

• 確実性かくじつせい

  certainty

• 確かにたしかに

  surely, certainly

• 確率場かくりつば

  random field

• 確率論かくりつろん

  probability theory

• 確認要かくにんよう

  confirmation required

• 確認証かくにんしょう

  (proof of) confirmation

• 確定石かくていせき

  stable disc (in Othello)

• 確たるかくたる

  certain, definite, clear, credible

• 確率的かくりつてき

  stochastic, probabilistic

• 確率波かくりつは

  stochastic wave, probability wave

• 確かめたしかめ

  confirmation, certification, ascertainment

• 確定的かくていてき

  definite, certain, decided, fixed, settled

• 確認書かくにんしょ

  written confirmation, confirmation document, confirmation note