1. (n.) Orderly arrangement; preparation; provision.

2. (n.) A rule established by authority; a permanent rule of action; a statute, law, regulation, rescript, or accepted usage; an edict or decree; esp., a local law enacted by a municipal government; as, a municipal ordinance.

3. (n.) An established rite or ceremony.

4. (n.) Rank; order; station.

5. (n.) Ordnance; cannon.