# linearly

/ˈɫɪniɝɫi/ (US) · /lˈɪniəli/ (UK) · CEFR C1 · Adverb

Source: https://englishreference.com/word/linearly
Updated: 2026-05-20

## Definition

in a straight line or in a way that follows a simple, direct pattern. You use this to describe things that increase or decrease at a steady rate.

For teachers: in a straight line or in a manner that follows a direct, proportional relationship. Often describes mathematical functions or physical processes where the output is directly proportional to the input.

## Examples

- The cost of the tickets increases linearly with the number of people.
- The scientist observed that the temperature of the liquid rose linearly as the heat was applied.
- While the initial growth of the bacteria was linearly proportional to the available nutrients, the rate eventually slowed as the environment became saturated with waste products.

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