for all meaning
EN- PrepositionPREfor-SUF-all
- In spite of, despite.
- For all his protests, he was forced to have a bath.
- (mathematics, literally) (Indicates that a statement is true no matter what element of a set it is made about.).
- For all x in A, is even.
- In spite of, despite.
- More Examples
- Used in the Middle of Sentence
- 1993, I had lost him. He might have been speaking Ursprache, for all that I understood. — Will Self, My Idea of Fun
- Large and square-headed, fatuously complacent, pot-bellied, spade-handed and dumpy-footed, for all the world presenting the appearance of animated jelly.
- This treaty, for all intents and purposes, is no longer viable.
- Used in the Beginning of Sentence
- For all his protests, he was forced to have a bath.
- For all of the taxonomies studied, there was a level of abstraction at which all of these factors co-occurred.
- Used in the Ending of Sentence
- Let's try to put this question to rest once and for all.
- Used in the Middle of Sentence
Definition of for all in English Dictionary
- Part-of-Speech Hierarchy
- Prepositions
- Prepositions
- en for all the world
- en for all one knows
- en for all one is worth
- en for all intensive purposes
- en for all intrinsic purposes
Source: Wiktionary
Grammatically, this idiom "for all" is a preposition.