Meaning of the word "as far as" in English

What does "as far as" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

as far as

US /æz fɑr æz/
UK /æz fɑːr æz/

Phrase

1.

to the extent or degree that

Example:
As far as I know, he's still working there.
You can go as far as the river.
2.

concerning; regarding

Example:
As far as your proposal is concerned, we need more details.
I'm happy as far as the results are concerned.