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family law

ab initio

Ab initio is a Latin term that means "from the beginning” or “from inception.” Ab initio is used to indicate that some fact existed from the start of a relevant time period. It is often used as part of the phrase “void ab initio,” meaning something – such as a marriage – was void from the beginning.

abandon

Abandon refers to the act of abandonment. A party can “abandon” in multiple fields of law and abandoning generally, though not always, involves voluntarily giving up a right.

See abandonment for more information. 

[Last reviewed in June of 2022 by the Wex Definitions Team]

acquisition of citizenship

Acquisition of citizenship refers to the ability of individuals born abroad to achieve U.S. citizenship because at least one of their parents is a U.S. citizen. If the child meets the complex requirements, the child “acquires” citizenship through a parent even if the child was born abroad. The laws governing acquisition of citizenship have been changed significantly, and in order to determine a child’s eligibility for acquisition, they must look to the laws applicable for their birth year.

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