All 5 Uses

establish
in
Unbroken, by Hillenbrand
(Edited)

With inventory taken and rules established, there was nothing to do but wait.
p. 129.1

established = set in place
Stories of cannibalism among castaways were so common that British sailors considered the practice of choosing and sacrificing a victim to be an established "custom of the sea."
p. 149.1 *

established = existing, or set in place
Because the Liberator didn't have the range to make the three-thousand-mile round-trip between Saipan and Japan's home islands, the captives must have believed that winning Saipan was only a preliminary step to establishing an island base within bomber range of mainland Japan.
p. 223.1

establishing = creating
This is one of the many examples of the men missing in action erroneously reported and later being established as a lie.
p. 254.4 *

established = shown or proven
The telegram ended with a disclaimer: PENDING FURTHER CONFIRMATION THIS REPORT DOES NOT ESTABLISH HIS STATUS AS A PRISONER OF WAR.
p. 258.2

establish = make

Definitions:

(1) (establish as in: establish a positive tone)
create, start, or set in [a] place
(2) (establish as in: establish that there is a need)
show or determine (cause to be recognized or figure out)
(3) (meaning too rare to warrant focus)