What does multiplier mean?
A multiplier is a number, person, organization, or device that increases the value, effect, or influence of something else. In arithmetic, it is the quantity by which another quantity is multiplied: in 6 × 4, 6 is the multiplier and 4 is the multiplicand. In economics, a multiplier describes the larger effect produced by an initial change in expenditure, income, or investment. More broadly, the word can refer to any agent that amplifies an outcome, such as a policy that encourages business growth or a device that strengthens a signal. The word is useful because it captures more than simple increase: a multiplier suggests that the original input produces a disproportionately large or influential result.
nounA number or quantity that is multiplied by another number; also, a person, organization, or other agent that increases the effect, value, or influence of something.
- A number or quantity that multiplies another number or quantity.
- A person, organization, or thing that increases the effect, value, or influence of something else.
- A device or component that increases the strength or amplitude of an electrical, electronic, or mechanical signal.
"The policy is intended to act as a multiplier for economic growth."
"Three is the multiplier in the calculation 3 × 8."
"Small businesses can act as a multiplier for local employment."
"The amplifier is a voltage multiplier that increases the signal strength."
The plural is used when referring to several mathematical multipliers, amplifying agents, or devices.
"The two multipliers produced different results when applied to the input."
A multiplier does more than make a number larger: in economics, it describes how an initial increase in spending can generate a much larger overall effect.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of multiplier
The word comes from the Latin multiplicator, meaning “one who multiplies” or “a multiplier,” formed from multiplicare, “to multiply,” with the suffix -ator, indicating an agent or instrument. English borrowed it through Old French and established the mathematical sense early. Its cognate family includes multiply, multiplication, multiplicative, and multiplicity, all based on the Latin root multiplic-, meaning “having many” or “increasing by repetition.”
How multiplier is actually used
In mathematics, the term specifically refers to the number used to multiply another number. In economics and general usage, it often suggests something that has a larger-than-direct effect. The electrical and mechanical senses are technical but standard.
Easily confused with multiplier
A multiplier is the number by which another number is multiplied, while a multiplicand is the number being multiplied.
A multiplier has the specific mathematical function of multiplying another quantity, whereas a factor is any element that contributes to a result.