transitive verb
Definition 1
Make firm or stable, fasten, secure, implant (principles, method, right, etc.).
Source: Invertext, from Concise Oxford Dictionary
Context: The first reason is that AIG had to pay the bonuses to 370 employees in its financial products (aka derivatives and funny stuff) division because it foolishly agreed last year to fix this element of their pay for two years.
Source: Financial Times 19/03/2009
Definition 2
Fasten, secure (thing to or in other thing).
Source: Invertext, from Concise Oxford Dictionary
Context: There are two way to fix the handle to the drawers and door.
Source: yfcad-srbija.com