Definitionen
1.Verbsimple past and past participle of establish
2.AdjectiveHaving been in existence for a long time and therefore recognized and generally accepted.
3.AdjectiveOf a religion, church etc.: formally recognized by a state as being official within that area.
4.AdjectiveOf any social or economic entity: part of the establishment (“groups with socioeconomic power”).
5.Adjective(Model, procedure, disease) Explicitly defined, described or recognized as a reference.