1 : (architecture) one of original three styles of Greek architecture distinguished by the type of column and entablature used or a style developed from the original three by the Romans
2 : a body of rules followed by an assembly
3 : a condition of regular or proper arrangement
4 : a formal association of people with similar interests
1 : make a request for something
2 : arrange thoughts, ideas, temporal events
3 : appoint to a clerical posts