having existed or done something for a long time and therefore recognized and generally accepted
the ceremony was an established event in the annual calendar
an established artist
(of a Church or religion) recognized by the state as the national Church or religion
America had no established Church
set up on a firm or permanent basis
the scheme was established in 1975
show (something) to be true or certain by determining the facts
the police established that the two passports were forgeries
ensure that one's remaining cards in (a suit) will be winners (if not trumped) by playing off the high cards in that suit
the right plan would be to establish dummy's diamonds