# PFS

> English word · Noun · frequency rank #58,929

## Definitions
1. Initialism of perfect forward secrecy.
2. Initialism of progression-free survival.
3. Initialism of pyoderma fistulans sinifica.
4. Initialism of post-finasteride syndrome.
5. Initialism of post-viral fatigue syndrome.

## Etymology
Abbreviation.

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