# spiro

> English word · Noun · IPA /ˈspɪɹəʊ/ · frequency rank #40,900

## Definitions
1. A polycyclic compound or system that contains a single atom as the only common member of two rings.

## Etymology
Ultimately from Latin spīra (“coil, twist”).

## Easily confused with
- **SPR** (https://plainspell.com/en/vs/spiro-vs-spr)
- **stir** (https://plainspell.com/en/vs/spiro-vs-stir)
- **spit** (https://plainspell.com/en/vs/spiro-vs-spit)
- **spur** (https://plainspell.com/en/vs/spiro-vs-spur)
- **sport** (https://plainspell.com/en/vs/spiro-vs-sport)
- **spite** (https://plainspell.com/en/vs/spiro-vs-spite)
- **Spurs** (https://plainspell.com/en/vs/spiro-vs-spurs)
- **swirl** (https://plainspell.com/en/vs/spiro-vs-swirl)
- **spore** (https://plainspell.com/en/vs/spiro-vs-spore)
- **spurt** (https://plainspell.com/en/vs/spiro-vs-spurt)
- **sir** (https://plainspell.com/en/vs/sir-vs-spiro)
- **spin** (https://plainspell.com/en/vs/spin-vs-spiro)
- **sire** (https://plainspell.com/en/vs/sire-vs-spiro)
- **Siri** (https://plainspell.com/en/vs/siri-vs-spiro)
- **spar** (https://plainspell.com/en/vs/spar-vs-spiro)
- **silo** (https://plainspell.com/en/vs/silo-vs-spiro)
- **shirt** (https://plainspell.com/en/vs/shirt-vs-spiro)
- **spare** (https://plainspell.com/en/vs/spare-vs-spiro)
- **spark** (https://plainspell.com/en/vs/spark-vs-spiro)
- **skirt** (https://plainspell.com/en/vs/skirt-vs-spiro)

## Common misspellings (7)
`psiro`, `sipro`, `spior`, `spirro`, `sppiro`, `sprio`, `sspiro`

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