1. A condition of logical or comprehensible arrangement among the separate elements of a group.

2. a. A condition of methodical or prescribed arrangement among component parts such that proper functioning or appearance is achieved: "Order, cleanliness, seemliness make a structure that is half support, half ritual" (Florida Scott-Maxwell). b. Condition or state in general: in good order.

3. a. The established system of social organization: "Every revolution exaggerates the evils of the old order" (C. Wright Mills). b. A condition in which freedom from disorder or disruption is maintained through respect for established authority: finally restored order in the rebellious provinces.

4. A sequence or an arrangement of successive things.

5. The prescribed form or customary procedure: the order of worship.

6. An authoritative indication to be obeyed; a command or direction.

7. a. A command given by a superior military officer requiring obedience, as in the execution of a task. b. orders Formal written instructions to report for military duty at a specified time and place.

8. a. A commission or an instruction to buy, sell, or supply something. b. That which is supplied, bought, or sold.

9. a. A request made by a customer at a restaurant for a portion of food. b. The food requested.

10. Law. A direction or command delivered by a court or other adjudicative body and entered into the record but not necessarily included in the final judgment or verdict.

11. Ecclesiastical. a. Any of several grades of the Christian ministry: the order of priesthood. b. Often orders The rank of an ordained Christian minister or priest. c. Often orders The sacrament or rite of ordination.

12. Any of the nine grades or choirs of angels.

13. A group of persons living under a religious rule: Order of Saint Benedict.

14. An organization of people united by a common fraternal bond or social aim.

15. a. A group of people upon whom a government or sovereign has formally conferred honor for unusual service or merit, entitling them to wear a special insignia: the Order of the Garter. b. The insignia worn by such people.

16. Often orders A social class: the lower orders.

17. A class defined by the common attributes of its members; a kind.

18. Degree of quality or importance; rank: poetry of a high order.

19. Architecture. a. Any of several styles of classical architecture characterized by the type of column employed: the Corinthian order. b. A style of building: a cathedral of the Gothic order.

20. Biology. A taxonomic category of organisms ranking above a family and below a class.

21. Mathematics. a. The sum of the exponents to which the variables in a term are raised; degree. b. An indicated number of successive differentiations to be performed. c. The number of elements in a finite group. d. The number of rows or columns in a determinant or matrix.

1. To issue a command or an instruction to. See synonyms at command.

2. To give a command or an instruction for: The judge ordered a recount of the ballots.

3. To direct to proceed as specified: ordered them off the property.

4. To give an order for; request to be supplied with.

5. To put into a methodical, systematic arrangement. See synonyms at arrange.

6. To predestine; ordain.

1. Of a kind or fashion similar to; like: a house on the order of a mountain lodge.

2. Approximately; about: equipment costing on the order of a million dollars.