1.Definition: (of a clause) capable of standing syntactically alone as a complete sentence

"The main (or independent) clause in a complex sentence has at least a subject and a verb"

Related Adjective(s):main

2.Definition: (of political bodies) not controlled by outside forces

Related Adjective(s):autonomous, sovereign

3.Definition: free from external control and constraint

"An independent mind", "A series of independent judgments", "Fiercely independent individualism"

4.Definition: not controlled by a party or interest group