Definition of "Establish" :
verb: use as a basis for; found on
verb: establish the validity of something, as by an example, explanation or experiment
verb: institute, enact, or establish
verb: set up or lay the groundwork for
"Establish a new department."
verb: bring about
"The trompe l'oeil-illusion establishes depth."
verb: build or establish something abstract
verb: set up or found