The difference between Promotion and Reduction
When used as nouns, promotion means an advancement in rank or position, whereas reduction means the act, process, or result of reducing.
check bellow for the other definitions of Promotion and Reduction
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Promotion as a noun:
An advancement in rank or position.
Examples:
"I'll have to give myself a promotion!"
"ant demotion"
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Promotion as a noun:
Dissemination of information in order to increase its popularity.
Examples:
"the promotion of the idea of global warming in schools"
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Promotion as a noun (marketing):
An event intended to increase the reach or image of a product or brand.
Examples:
"The price cut is serving as a promotion of the manufacturer's new beverage varieties."
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Promotion as a noun (zoology, chiefly, entomology):
Forward motion.
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Reduction as a noun:
The act, process, or result of reducing.
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Reduction as a noun:
The amount or rate by which something is reduced, e.g. in price.
Examples:
"A 5% reduction in robberies"
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Reduction as a noun (chemistry):
A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen or the addition of hydrogen.
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Reduction as a noun (cooking):
The process of rapidly boiling a sauce to concentrate it.
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Reduction as a noun (mathematics):
The rewriting of an expression into a simpler form.
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Reduction as a noun (computability theory):
a transformation of one problem into another problem, such as mapping reduction or polynomial reduction.
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Reduction as a noun (music):
An arrangement for a far smaller number of parties, e.g. a keyboard solo based on a full opera.
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Reduction as a noun (philosophy, phenomenology):
A philosophical procedure intended to reveal the objects of consciousness as pure phenomena. (See phenomenological reduction.)
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Reduction as a noun (medicine):
A medical procedure to restore a fracture or dislocation to the correct alignment.