# porous

> English word · Adjective · IPA /ˈpɔːɹəs/ · frequency rank #17,924

## Definitions
1. Full of tiny pores that allow fluids or gasses to pass through.
2. With many gaps or loopholes.

## Etymology
From Old French poros, from Latin porus (“an opening”). By surface analysis, pore + -ous.

## Easily confused with
- **pros** (https://plainspell.com/en/vs/porous-vs-pros)
- **proud** (https://plainspell.com/en/vs/porous-vs-proud)
- **ports** (https://plainspell.com/en/vs/porous-vs-ports)
- **props** (https://plainspell.com/en/vs/porous-vs-props)
- **POTUS** (https://plainspell.com/en/vs/porous-vs-potus)
- **Prius** (https://plainspell.com/en/vs/porous-vs-prius)
- **probs** (https://plainspell.com/en/vs/porous-vs-probs)
- **Proust** (https://plainspell.com/en/vs/porous-vs-proust)
- **pools** (https://plainspell.com/en/vs/pools-vs-porous)
- **pores** (https://plainspell.com/en/vs/pores-vs-porous)
- **pious** (https://plainspell.com/en/vs/pious-vs-porous)
- **poops** (https://plainspell.com/en/vs/poops-vs-porous)
- **pompous** (https://plainspell.com/en/vs/pompous-vs-porous)

## Common misspellings (8)
`oprous`, `poorus`, `porosu`, `porouss`, `porrous`, `poruos`, `pporous`, `proous`

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