In heraldry, an ordinary (or honourable ordinary) is a simple geometrical figure, bounded by straight lines and running from side to side or top to bottom of the shield. There are also some geometric charges known as subordinaries, which have been given lesser status by some heraldic writers, though most have been in use as long as the traditional ordinaries. Diminutives of ordinaries and some subordinaries are charges of the same shape, though thinner. Most of the ordinaries are theoretically said to occupy one-third of the shield; but this is rarely observed in practice, except when the ordinary is the only charge (as in the coat of arms of Austria).
The terms ordinary and subordinary are somewhat controversial, as they have been applied arbitrarily and inconsistently among authors, and the use of these terms has been disparaged by some leading heraldic authorities. In his Complete Guide to Heraldry (1909), Arthur Charles Fox-Davies asserted that the terms are likely inventions of heraldic writers and not of heralds, arguing the "utter absurdity of the necessity for any [such] classification at all," and stating that the ordinaries and sub-ordinaries are, in his mind, "no more than first charges."
Ordinaries (sometimes called "honourable ordinaries") resemble partitions of the field, but are formally considered objects on the field. Though there is some debate as to exactly which geometrical charges—with straight edges and running from edge to edge of the shield—constitute ordinaries, certain ones are agreed on by everyone. Except for the chief they are central to the shield.
The following are sometimes classed as ordinaries, sometimes as subordinaries (see below):
a bordure—Argent; an oak tree eradicated, fessways, proper, between three pheons, points upward, azure; within a bordure azure—Dalgleish of Keavil, Scotland
a pile—Argent, on a pile azure three towers, two and one, of the first, in the middle chief point two keys in saltire, wards upwards and inwards, or—Otley Urban District Council, England
a pairle or pall—Ermine; a pairle azure charged with the crosier of St Fillan proper—Dewar, Canada* (Scots coat)
a shakefork—Azure, a shakefork argent supporting in the middle chief a bezant, within an annulet enwreathed, ensigned of a naval crown or, the sails argent, beneath which on a panel argent edged or is the name ‘Discovery’ in letters sable—HM Canadian Ship Discovery