de facto

Definition of de facto

Etymology

A Latin expression that means "in fact" or "in practice" or "in reality"

Adjective

de facto

1. Actual.
2. Virtual, being such in effect or essence (rather than literally in fact) though not formally or wholly taken for granted, as opposed to de jure.
3. (politics, military) Of a political or military leader, exercising power without being legally established.
   
   Although the United States currently has no official language, it is largely monolingual with English being the de facto national language.
   
   
4. (computing) Of hardware or software, being widely used, but not conforming to a standard.

Antonyms

• de jure

Adverb

de facto

1. in reality

Noun

de facto

1. (Australian) A legally undeclared spouse. Usually spelled defacto.

Further reading

De facto is a Latin expression that means "by [the] fact". In law, it is meant to mean "in practice but not necessarily ordained by law" or "in practice or actuality, but without being officially established". It is commonly used in contrast to de jure (which means "concerning the law") when referring to matters of law, governance, or technique (such as standards) that are found in the common experience as created or developed without or contrary to a regulation. When discussing a legal situation, de jure designates what the law says, while de facto designates action of what happens in practice. It is analogous and similar to the expressions "for all intents and purposes" or "in fact". The term de facto as of governments was created after the Argentine Constitution referred to illegal governments (governing bodies which Argentina did not acknowledge as individual nations) as de facto governments. The term de facto may also be used when there is no relevant law or standard, but a common and well established practice that is considered the accepted norm.