# HDR

> English word · Noun · frequency rank #27,489

## Definitions
1. Initialism of hot dry rock.
2. Initialism of humanitarian daily ration.
3. Initialism of high dynamic range.
4. Initialism of hard disk recorder or hard drive recorder (“a recording device that records onto a hard disk drive”).

## Etymology
Abbreviation.

## Easily confused with
- **he** (https://plainspell.com/en/vs/hdr-vs-he)
- **hi** (https://plainspell.com/en/vs/hdr-vs-hi)
- **ho** (https://plainspell.com/en/vs/hdr-vs-ho)
- **HR** (https://plainspell.com/en/vs/hdr-vs-hr)
- **HP** (https://plainspell.com/en/vs/hdr-vs-hp)
- **hm** (https://plainspell.com/en/vs/hdr-vs-hm)
- **HQ** (https://plainspell.com/en/vs/hdr-vs-hq)
- **Hu** (https://plainspell.com/en/vs/hdr-vs-hu)
- **HK** (https://plainspell.com/en/vs/hdr-vs-hk)
- **HG** (https://plainspell.com/en/vs/hdr-vs-hg)
- **HH** (https://plainspell.com/en/vs/hdr-vs-hh)
- **hv** (https://plainspell.com/en/vs/hdr-vs-hv)
- **hn** (https://plainspell.com/en/vs/hdr-vs-hn)
- **his** (https://plainspell.com/en/vs/hdr-vs-his)
- **her** (https://plainspell.com/en/vs/hdr-vs-her)
- **how** (https://plainspell.com/en/vs/hdr-vs-how)
- **him** (https://plainspell.com/en/vs/hdr-vs-him)
- **hit** (https://plainspell.com/en/vs/hdr-vs-hit)
- **hot** (https://plainspell.com/en/vs/hdr-vs-hot)
- **hey** (https://plainspell.com/en/vs/hdr-vs-hey)

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