[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/dual/)

[dictionaries](https://md.dictionary.elamur.ai/free/en/) / [English](https://md.dictionary.elamur.ai/free/en/english/) / [D](https://md.dictionary.elamur.ai/free/en/english/d/) / dual

# dual

adjective

«dual» in the English dictionary: everyday and in Jewish tradition — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Having two parts, uses or sides; double. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#m1)
2. dual nationality / dual citizenship: being a citizen of two countries at the same time. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#m2)
3. (maths) In some topics, dual means a matching partner shape or idea (for example, a cube and an octahedron are duals). [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#m3)

### In the lessons

In everyday life: dual carriageway (a road with two lanes each way, UK), dual-language books, dual controls in a learner car; in maths and geography; phrases: «dual carriageway», «dual citizenship», «dual purpose».

### Examples

- My cousin has dual citizenship: Irish and Australian. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#x1)
- This book is dual-language, English on one page and French on the other. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#x2)
- Driving schools use cars with dual controls. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#x3)
- The road becomes a dual carriageway after the roundabout. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#x4)
- This tool has a dual purpose: a torch and a whistle. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#x5)
- The game has a dual-screen mode. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/#x6)

### Note

Homophone trap: dual (two) vs duel (a fight between two people). Tip: «dual» has «a» like «a pair». Not used about people (do not say «dual twins»).

## In Jewish tradition

In everyday life: dual carriageway (a road with two lanes each way, UK), dual-language books, dual controls in a learner car; in maths and geography; phrases: «dual carriageway», «dual citizenship», «dual purpose».

### Examples

- It is the Consummation of the Truth of indivi- dual spiritual things. (Sefer Yetzirah, Westcott 1893) [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/D/dual/#x1)

### Note

Homophone trap: dual (two) vs duel (a fight between two people). Tip: «dual» has «a» like «a pair». Not used about people (do not say «dual twins»).

## On Mova

- [Trees and pragmatics of «dual» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/D/dual/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«dual» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/dual.html) on Mova free.
- [Trees and pragmatics of «dual» in the Judaism dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/judaism/D/dual/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«dual» in the Judaism dictionary](https://mova.elamur.ai/free/en/dictionaries/judaism/w/dual.html) on Mova free.