simple past tense and past participle of establish
"The committee finally established a new policy after months of debate."
In plain English: To establish something means to set it up so that it officially exists and is accepted by others.
"The company plans to establish a new branch in Tokyo next year."
Usage: Use established to describe something that has been successfully set up or founded in the past. It functions as the simple past tense or past participle when indicating an action completed earlier than the current moment.
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"
settled securely and unconditionally
"that smoking causes health problems is an accomplished fact"
introduced from another region and persisting without cultivation
"The old oak tree in our backyard is an established species that my grandfather brought back from a forest fire zone years ago, where it has thrived without any need for planting or tending."
Having been in existence for a long time and therefore recognized and generally accepted.
"The established rules of the club have guided its members through decades of tradition."
In plain English: Established means something that has been set up and is now well-known or officially recognized.
"The established rules for the game were clear to everyone."
Usage: Use established to describe institutions, traditions, or facts that have existed for a significant period and are now widely accepted. Avoid using it simply to mean something was recently created or set up.
The word established comes from Old French and originally meant to set up or found something firmly. It traveled into English with that same core sense of creating a lasting foundation for an institution or belief.