# SDR

> English word · Noun · frequency rank #48,474

## Definitions
1. Initialism of special drawing right.
2. Initialism of single data rate.
3. Initialism of system of distinct representatives.
4. Initialism of software defined radio.
5. Initialism of standard dynamic range.
6. Initialism of surveillance detection route.
7. Initialism of socially desirable responding.
8. Initialism of standard dynamic range
9. Initialism of Strategic Defence Review, a review of the United Kingdom's defence policy.

## Etymology
Abbreviation.

## Easily confused with
- **so** (https://plainspell.com/en/vs/sdr-vs-so)
- **se** (https://plainspell.com/en/vs/sdr-vs-se)
- **SI** (https://plainspell.com/en/vs/sdr-vs-si)
- **SS** (https://plainspell.com/en/vs/sdr-vs-ss)
- **SP** (https://plainspell.com/en/vs/sdr-vs-sp)
- **su** (https://plainspell.com/en/vs/sdr-vs-su)
- **sf** (https://plainspell.com/en/vs/sdr-vs-sf)
- **sh** (https://plainspell.com/en/vs/sdr-vs-sh)
- **SM** (https://plainspell.com/en/vs/sdr-vs-sm)
- **SW** (https://plainspell.com/en/vs/sdr-vs-sw)
- **SL** (https://plainspell.com/en/vs/sdr-vs-sl)
- **SG** (https://plainspell.com/en/vs/sdr-vs-sg)
- **SK** (https://plainspell.com/en/vs/sdr-vs-sk)
- **SV** (https://plainspell.com/en/vs/sdr-vs-sv)
- **SJ** (https://plainspell.com/en/vs/sdr-vs-sj)
- **Sy** (https://plainspell.com/en/vs/sdr-vs-sy)
- **she** (https://plainspell.com/en/vs/sdr-vs-she)
- **see** (https://plainspell.com/en/vs/sdr-vs-see)
- **set** (https://plainspell.com/en/vs/sdr-vs-set)
- **six** (https://plainspell.com/en/vs/sdr-vs-six)

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sdr