Monotone

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

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
• Monotonically increasing, a property of number sequence

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
• Quantifier monotonicity, in formal semantics
• "Monotone", a song by Yoasobi for 2024 animated film Fureru