dual

C1 Topic:Numbers & Quantity

US /ˈd͡ʒuː.əl/ See IPA manual

Homophones

duel /ˈˈd͡ʒuːəl/

adj noun Freq #17372

Meanings

1

adj
Having two parts, aspects, or purposes.

The car has a dual fuel system that runs on petrol or gas.
2

adj
Having two different roles, qualities, or characters.

The actor played a dual role as twin brothers.

Thesaurus

Synonyms

1 adj · having two parts, aspects,... double twin

2 adj · having two different roles,... double

More binary twofold

Word family

Derived forms bidualcodualcodualitydual-banddual-bootdual-brakeddual-exceptionaldual-frequencydual-modedual-porteddual-purposedual-sim

Related forms duelunal

Etymology

PIE word *dwóh₁ Borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.

dualis Latin

View etymology graph ->

Topics

Numbers & Quantity

# dual

**Type:** Word
**Level:** C1
**Part of speech:** adj, noun
**IPA (US):** ˈd͡ʒuː.əl
**Frequency rank:** 17372

## Meanings
1. Having two parts, aspects, or purposes.
2. Having two different roles, qualities, or characters.

## Examples
- The car has a dual fuel system that runs on petrol or gas.
- The actor played a dual role as twin brothers.

## Synonyms
- binary
- double
- twin
- twofold

## Derived Forms
- bidual
- codual
- coduality
- dual-band
- dual-boot
- dual-braked
- dual-exceptional
- dual-frequency
- dual-mode
- dual-ported
- dual-purpose
- dual-sim

## Related Forms
- duel
- unal

## Roots and Affixes
- Root: dualis

## Etymology
PIE word *dwóh₁ Borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis.

## AI Etymology
Dual is borrowed from Latin dualis (“two”), from duo (“two”) + adjective suffix -alis. The historical chain includes dualis (Latin). The surrounding word family includes derived forms such as bidual, codual, coduality, and dual-band and related forms such as duel and unal. In present use it covers having two parts, aspects, or purposes and having two different roles, qualities, or characters.

## Topics
- Numbers & Quantity

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dual

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