Synonyms of the word

fill-in

• n. A temporary replacement for another.

backup

• n. A reserve or substitute.
• n. (computing) A copy of a file or record, stored separately from the original, that can be used to recover…
• n. An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement…
• n. (law enforcement) reinforcements.
• adj. Standby, reserve or extra.
• adj. (computing) That is intended as a backup.
• v. Misspelling of back up.

compeer

• n. (obsolete) the equal or peer of someone else; someone who is a close companion or associate of someone…
• v. To be equal with; to match.

equal

• adj. (not comparable) The same in all respects.
• adj. (mathematics, not comparable) Exactly identical, having the same value.
• adj. (obsolete) Fair, impartial.
• adj. (comparable) Adequate; sufficiently capable or qualified.
• adj. (obsolete) Not variable; equable; uniform; even.
• adj. (music) Intended for voices of one kind only, either all male or all female; not mixed.
• v. (mathematics) To be equal to, to have the same value as; to correspond to.
• v. To be equivalent to; to match.
• v. (informal) To have as its consequence.
• n. A person or thing of equal status to others.
• n. (obsolete) State of being equal; equality.

match

• n. (sports) A competitive sporting event such as a boxing meet, a baseball game, or a cricket match.
• n. Any contest or trial of strength or skill, or to determine superiority.
• n. Someone with a measure of an attribute equaling or exceeding the object of comparison.
• n. A marriage.
• n. A candidate for matrimony; one to be gained in marriage.
• n. Suitability.
• n. Equivalence; a state of correspondence.
• n. Equality of conditions in contest or competition.
• n. A pair of items or entities with mutually suitable characteristics.
• n. An agreement or compact.
• n. (metalworking) A perforated board, block of plaster, hardened sand, etc., in which a pattern is partly…
• v. (intransitive) To agree, to be equal, to correspond to.
• v. (transitive) To agree, to be equal, to correspond to.
• v. (transitive) To make a successful match or pairing.
• v. (transitive) To equal or exceed in achievement.
• v. (obsolete) To unite in marriage, to mate.
• v. To fit together, or make suitable for fitting together; specifically, to furnish with a tongue and groove…
• n. A device made of wood or paper, at the tip coated with chemicals that ignite with the friction of being…

peer

• v. (intransitive) To look with difficulty, or as if searching for something.
• v. To come in sight; to appear.
• n. Somebody who is, or something that is, at a level equal (to that of something else).
• n. Someone who is approximately the same age (as someone else).
• n. A noble with a hereditary title, i.e., a peerage, and in times past, with certain rights and privileges…
• n. A comrade; a companion; an associate.
• v. To make equal in rank.
• v. (Internet) To carry communications traffic terminating on one's own network on an equivalency basis to…
• n. Someone who pees, someone who urinates.

relief

• n. The removal of stress or discomfort.
• n. The feeling associated with the removal of stress or discomfort.
• n. The person who takes over a shift for another.
• n. Aid or assistance offered in time of need.
• n. (law) Court-ordered compensation, aid, or protection, a redress.
• n. A lowering of a tax through special provisions; short for tax relief.
• n. A type of sculpture or other artwork in which shapes or figures protrude from a flat background.
• n. The apparent difference in elevation in the surface of a painting or drawing made noticeable by a variation…
• n. The difference of elevations on a surface.
• adj. (of a surface) Characterized by surface inequalities.
• adj. Of or used in letterpress.

reliever

• n. (baseball) A relief pitcher.
• n. Someone who fills in for another.

stand-in

• n. A person of similar size and shape to an actor that "stands-in" for the actor during the lengthy process…
• n. A substitute.

substitute

• v. (transitive) To use in place of something else, with the same function.
• v. (transitive) In the phrase "substitute X with/by Y", to use Y in place of X; to replace X with Y.
• v. (transitive, sports) To remove (a player) from the field of play and bring on another in his place.
• v. (intransitive) To serve as a replacement (for someone or something).
• n. A replacement or stand-in for something that achieves a similar result or purpose.
• n. (sports) A player who is available to replace another if the need arises, and who may or may not actually…
• n. (historical) One who enlists for military service in the place of a conscript.