usage: establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture"
4. lay down, establish, make, make, create
usage: institute, enact, or establish; "make laws"
5. establish, give, make, create
usage: bring about; "The trompe l'oeil-illusion establishes depth"
6. install, instal, set up, establish
usage: place; "Her manager had set her up at the Ritz"
7. build, establish, make, create
usage: build or establish something abstract; "build a reputation"
8. establish, base, ground, found
usage: use as a basis for; found on; "base a claim on some observation"
usage: brought about or set up or accepted; especially long established; "the established social order"; "distrust the constituted authority"; "a team established as a member of a major league"; "enjoyed his prestige as an established writer"; "an established precedent"; "the established Church"