WordNet sense 1 (a condition of regular or proper arrangement):

orderliness

WordNet sense 2 ((usually plural) the status or rank or office of a Christian clergyman in an ecclesiastical hierarchy):

holy order

WordNet sense 3 (logical or comprehensible arrangement of separate elements):

ordination, ordering

WordNet sense 4 (a formal association of people with similar interests):

club, gild, guild, lodge, society, social club

WordNet sense 5 (a group of person living under a religious rule):

monastic order

WordNet sense 6 (a body of rules followed by an assembly):

parliamentary law, parliamentary procedure, rules of order

WordNet sense 7 (a legally binding command or decision entered on the court record (as if issued by a court or judge)):

decree, edict, fiat, rescript

WordNet sense 8 (a commercial document used to request someone to supply something in return for payment and providing specifications and quantities):

purchase order

WordNet sense 9 (a degree in a continuum of size or quantity):

order of magnitude

WordNet sense 10 (bring into conformity with rules or principles or usage; impose regulations):

govern, regularize, regulate, regularise

WordNet sense 11 (appoint to a clerical posts):

consecrate, ordain, ordinate

WordNet sense 12 (issue commands or orders for):

dictate, prescribe

WordNet sense 13 (give instructions to or direct somebody to do something with authority):

enjoin, say, tell

WordNet sense 14 (arrange thoughts, ideas, temporal events):

arrange, put, set up

WordNet sense 15 (assign a rank or rating to):

grade, place, range, rank, rate