Last Updated：2025/11/20

Dictionary quizzes to help you remember the meaning

Dictionary quizzes to help you remember the meaning

ab initio

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Source Word

ab initio

IPA(Pronunciation)

/ˌæb ɪˈnɪʃ.i.oʊ/

Adverb

of an academic course

(law) From the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force.

Japanese Meaning

（法律用語）法律、権利、契約などの効力が発生した時点から、一から始めるという意味

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Google Translation / DeepL Translation

譲渡人に能力が欠けていたため、裁判所はその譲渡が効力を生じた時点から無効であると判断し、財産を遺産に返還するよう命じた。

Sense（1）

(law) From the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force.

Sense（2）

(sciences) Calculated from first principles, i.e. from basic laws without any further additional assumptions.

[…] this soul does not exist ab initio, as orthodox Christianity teaches; it has to be brought into existence by a process of guided self-observation. However, this is rarely achieved, owing to man's unique ability to be distracted from spiritual matters by everyday trivia.

Google Translation / DeepL Translation

Sense（3）

(of an academic course) Taken with no prior qualifications.

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