# continuum

/kənˈtɪnjuəm/ (US) · /kəntˈɪnjuːəm/ (UK)

Source: https://englishreference.com/word/continuum
Updated: 2026-08-08

## Senses

### 1. a gradual scale

noun · CEFR C1 · Academic

a range or series where each part is almost the same as the one next to it, but the two ends are completely different.

For teachers: a continuous series or whole in which no part is noticeably different from its adjacent parts, although the extremes are distinct.

- Scientists often view light and sound as part of a single continuum of energy.
- The researcher argued that the two political ideologies actually exist on a continuum rather than being entirely separate categories.

Usage: The plural form is usually 'continua', though 'continuums' is also accepted in modern usage.

### 2. mathematical set

noun · CEFR C2 · Technical

a set of numbers or points that are connected without any gaps.

For teachers: the set of all real numbers, or more broadly, any compact connected metric space.

- In calculus, we often work with a continuum of points along a line.
- The hypothesis concerning the cardinality of the continuum remains one of the most famous problems in set theory.

Usage: Typically used as an uncountable noun in this specific mathematical context.

### 3. musical instrument

noun · CEFR C2 · Technical

a special electronic keyboard that lets a player slide smoothly between notes without separate keys.

For teachers: a touch-sensitive controller that allows for continuous pitch control, typically in increments as small as 1/100 of a semitone.

- The musician used a continuum to create eerie, sliding sounds in the film score.
- Unlike a traditional piano, the continuum allows the performer to execute seamless glissandi across several octaves.

## Examples

- Pain exists on a continuum from mild to severe.
- The political spectrum is a continuum rather than a set of fixed categories.
- Scholars argue that gender identity is a continuum, challenging the traditional binary view that limits human experience to just two distinct options.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.