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1.
To set up, begin or introduce; such as a law or policy.
Congress will establish a viable policy.
by Tropane May 16, 2006
 
2.
To create. One is only able to establish something once, for once something is established, it cannot be established a second time.
New York City was established when it became a city; New York City was not established when the Erie Canal became successful.
by Dr. Oxford November 24, 2004
 
3.
establish is not to create regulations on cruise ships or treaties.
Wooster AK is not topical on the word establish.
by Urban Dictionary Staff March 02, 2004
 
4.
to set up for oneself
to ratify a treaty
to make a law
by Dr.Vadnel January 21, 2004