for all intents and purposes
Definition from Wiktionary, the free dictionary
Alternative forms 
1500s, English law, originally “to all intents, constructions, and purposes” (found in an act adopted under Henry VIII in 1547).
Prepositional phrase 
- (idiomatic, US) For every functional purpose; in every practical sense; in every important respect; practically speaking.
- For all intents and purposes the case is closed.
- This treaty is for all intents and purposes no longer viable.