Substitute

v. replace, exchange, interchange, put in the place of another; take the place of another

adj. of or pertaining to a substitute, acting as a substitute; made up of substitutes

n. replacement, person or thing that takes the place of another

Substitute may mean: In sport: A person who replaces an exiting competitor during the course of a game, as permitted by the laws of the game. Such replacements are generally made for tactical reasons, or when a player becomes tired or injured.Examples include:Football (soccer) - see Substitute (football)Cricket - see Substitute (cricket)Interchange (Australian rules football), in Australian Rules FootballOther uses:A substitute teacher, and any of a series of movies about fictional crime-fighting substitute teachers.Substitute character, the hexadecimal code number 0x1A in the ASCII character set.Substitution property of equality, an operation used in mathematics.Substitute good, a classification of goods or services in economic theory.Substitute (song), a 1966 song by The Who appearing on the album Meaty Beaty Big and BouncySubstitution (law), a legal right to change a judge that may be biased.Substitute flag, part of the international maritime signal flag setSubstitute chord, an alternative chord used in jazz harmony
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(n.)
To put in the place of another person or thing; to exchange.
  

(n.)
One who, or that which, is substituted or put in the place of another; one who acts for another; that which stands in lieu of something else
  

(n.)
a person who enlists for military service in the place of a conscript or drafted man.
  

<character> (SUB) ASCII character 26.
[Why?]
(1996-06-28)

One placed under another to transact business for him; in letters of attorney, power is generally given to the attorney to nominate and appoint a substitute.

Without such power, the authority given to one person cannot in general be delegated to another, because it is a personal trust and confidence, and is not therefore transmissible. The authority is given to him to exercise his judgment and discretion, and it cannot be said that the trust and confidence reposed in him shall be exercised at the discretion of another. But an authority may be delegated to another, when the attorney has express power to do so. When a man is drawn in the militia, he may in some cases hire a substitute.
   

This entry contains material from Bouvier's Legal Dictionary, a work published in the 1850's.