Root or Route?
Exemple : ‘’We need to get to the root of the problem soon!’’
"Root" and "route" are homonyms and are often mixed up despite their different meanings. "Root" is a noun referring to the "origin" or "starting point" of something. It can be used in a literal sense or in a more metaphorical sense regarding problems. It is also used to denote the part of a plant which grows into the earth.
Exemple : ‘’There is bad traffic so I propose we take a different route.’’
"Route" is a noun used to denote a particular way of getting from one place to another. It can also be used less literally to refer to the best way of acheiving something, such as "passing exams."