# Monotone

**Monotone** refers to a sound, for example music or speech, that has a single unvaried tone. See: monophony.

Look up in Wiktionary, the free dictionary.monotone |

**Monotone** or **monotonicity** may also refer to:

## In economics

- Monotone preferences, a property of a consumer's preference ordering.
- Monotonicity (mechanism design), a property of a social-choice function.
- Monotonicity criterion, a property of a voting-system.
- Resource monotonicity, a property of resource-allocation rules and bargaining systems.

## In mathematics

- Monotone class theorem, in measure theory
- Monotone convergence theorem, in mathematics
- Monotone polygon, a property of a geometric object
- Monotonic function, a property of a mathematical function
- Monotonicity of entailment, a property of some logical systems

## Other uses

- Monotone (software), an open source revision control system
- Monotonic orthography, simplified spelling of modern Greek
- The Monotones, 1950s American rock and roll band

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