RhymeZone: fundamental definitions

Definitions of fundamental:

noun: the lowest tone of a harmonic series
adjective: being or involving basic facts or principles
Example: "The fundamental laws of the universe"
adjective: far-reaching and thoroughgoing in effect especially on the nature of something
Example: "The fundamental revolution in human values that has occurred"
adjective: serving as an essential component
Example: "An example that was fundamental to the argument"