# PD

> English word · Noun · frequency rank #11,261

## Definitions
1. Initialism of police department.
2. Initialism of phase detector.
3. Initialism of public domain.
4. Initialism of peritoneal dialysis.
5. Initialism of penile duplication.
6. Abbreviation of period (full stop) punctuation mark, used in communication systems without punctuation (e.g., telegrams).
7. Initialism of professional development.
8. Initialism of public defender.
9. Initialism of Parkinson’s disease.
10. Initialism of panic disorder.
11. Initialism of personality disorder.
12. Initialism of pupillary distance.
13. Initialism of process deviation.
14. Initialism of power delivery.
15. Initialism of partial discharge.
16. Initialism of pole dance.
17. Initialism of program director.
18. Initialism of producer director.
19. Initialism of performance director.
20. Initialism of Progressive Democrat.
21. Initialism of positive deviance.
22. Initialism of prosecutorial discretion.

## Easily confused with
- **PM** (https://plainspell.com/en/vs/pd-vs-pm)
- **PP** (https://plainspell.com/en/vs/pd-vs-pp)
- **PR** (https://plainspell.com/en/vs/pd-vs-pr)
- **pt** (https://plainspell.com/en/vs/pd-vs-pt)
- **PS** (https://plainspell.com/en/vs/pd-vs-ps)
- **po** (https://plainspell.com/en/vs/pd-vs-po)
- **pi** (https://plainspell.com/en/vs/pd-vs-pi)
- **PG** (https://plainspell.com/en/vs/pd-vs-pg)
- **PL** (https://plainspell.com/en/vs/pd-vs-pl)
- **PE** (https://plainspell.com/en/vs/pd-vs-pe)
- **PF** (https://plainspell.com/en/vs/pd-vs-pf)
- **PU** (https://plainspell.com/en/vs/pd-vs-pu)
- **PK** (https://plainspell.com/en/vs/pd-vs-pk)
- **PV** (https://plainspell.com/en/vs/pd-vs-pv)
- **PJ** (https://plainspell.com/en/vs/pd-vs-pj)
- **PW** (https://plainspell.com/en/vs/pd-vs-pw)
- **PX** (https://plainspell.com/en/vs/pd-vs-px)
- **put** (https://plainspell.com/en/vs/pd-vs-put)
- **per** (https://plainspell.com/en/vs/pd-vs-per)
- **pro** (https://plainspell.com/en/vs/pd-vs-pro)

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