Meaning

• Arrangement, disposition, or sequence.

• A position in an arrangement, disposition, or sequence.

• The state of being well arranged.

  "The house is in order; the machinery is out of order."

• Conformity with law or decorum; freedom from disturbance; general tranquillity; public quiet.

  "to preserve order in a community or an assembly"

• A command.

• A request for some product or service; a commission to purchase, sell, or supply goods.

• A group of religious adherents, especially monks or nuns, set apart within their religion by adherence to a particular rule or set of principles.

  "St. Ignatius Loyola founded the Jesuit order in 1537."

• An association of knights.

  "the Order of the Garter, the Order of the Bath."

• Any group of people with common interests.

• A decoration, awarded by a government, a dynastic house, or a religious body to an individual, usually for distinguished service to a nation or to humanity.

• A rank in the classification of organisms, below class and above family; a taxon at that rank.

  "Magnolias belong to the order Magnoliales."

• A number of things or persons arranged in a fixed or suitable place, or relative position; a rank; a row; a grade; especially, a rank or class in society; a distinct character, kind, or sort.

  "talent of a high order"

• (chiefly plural) An ecclesiastical grade or rank, as of deacon, priest, or bishop; the office of the Christian ministry.

  "to take orders, or to take holy orders, that is, to enter some grade of the ministry"

• The disposition of a column and its component parts, and of the entablature resting upon it, in classical architecture; hence (since the column and entablature are the characteristic features of classical architecture) a style or manner of architectural design.

• The sequence in which a side’s batsmen bat; the batting order.

• A power of polynomial function in an electronic circuit’s block, such as a filter, an amplifier, etc.

  "a 3-stage cascade of a 2nd-order bandpass Butterworth filter"

• The overall power of the rate law of a chemical reaction, expressed as a polynomial function of concentrations of reactants and products.

• The cardinality, or number of elements in a set, group, or other structure regardable as a set.

• (of an element of a group) For given group G and element g ∈ G, the smallest positive natural number n, if it exists, such that (using multiplicative notation), gn = e, where e is the identity element of G; if no such number exists, the element is said to be of infinite order (or sometimes zero order).

• The number of vertices in a graph.

• A partially ordered set.

• The relation on a partially ordered set that determines that it is, in fact, a partially ordered set.

• The sum of the exponents on the variables in a monomial, or the highest such among all monomials in a polynomial.

  "A quadratic polynomial, a x^2 + b x + c, is said to be of order (or degree) 2."

• A written direction to furnish someone with money or property; compare money order, postal order.

Meaning

• To set in some sort of order.

• To arrange, set in proper order.

• To issue a command to.

  "He ordered me to leave."

• To request some product or service; to secure by placing an order.

  "to order groceries"

• To admit to holy orders; to ordain; to receive into the ranks of the ministry.