Substitution

• Substitution (poetry), a variation in poetic scansion • Substitution (theatre), an acting methodology Music • Chord substitution, swapping one chord for a related one within a chord progression • Tritone substitution, reinterpreting a chord via a new root note located an augmented fourth or diminished fifth distant from the root of the original interpretation • "Substitution" (Silversun Pickups song), 2009 • "Substitution" (Purple Disco Machine and Kungs song), 2023 ==Science and mathematics==

Biology and chemistry • Base-pair substitution or point mutation, a type of mutation • Substitution reaction, where a functional group in a chemical compound is replaced by another group • Substituent, the atom or atoms that replaces those of the reactant • Substitution, a process in which an allele arises and undergoes fixation Mathematics and computing • Substitution (algebra), replacing occurrences of some symbol by a given value • Substitution (logic), a syntactic transformation on strings of symbols of a formal language • String substitution, a mapping of letters in an alphabet to languages • Substitution of a character in a string, one of the single-character edits used to define the Levenshtein distance • Substitution cipher, a method of encryption • Integration by substitution, a method for finding antiderivatives and integrals Other uses in science • Substitution (economics), switching between alternative consumable goods as their relative prices change • Attribute substitution, a psychological process thought to underlie a number of cognitive biases and perceptual illusions • Substitution method, a method of measuring the transmission loss of an optical fiber ==Other uses==

• Substitution (law), the replacement of a judge • Substitution (sport), where a sports team is able to change one player for another during a match • Substitution therapy or opiate replacement therapy • Import substitution industrialization, a trade and economic policy • Penal substitution, a theory of the atonement within Christian theology • Simultaneous substitution, a practice requiring Canadian television distribution companies to substitute a non-local station signal with the local signal ==Within Wikipedia==

• Help:Substitution, help performing substitution on Wikipedia pages • Special:ExpandTemplates, page that shows what will result from substitution • Wikipedia:Substitution, where, when, how, and what about using substitution on Wikipedia ==See also==