# styrofoam

> English word · Noun · IPA /ˈstaɪ.ɹə.fəʊm/ · frequency rank #39,589

## Definitions
1. Expanded polystyrene foam, such as is used in cups and packaging.

## Etymology
Genericized trademark of Styrofoam, from -styr- (from polystyrene) + -o- + foam.

## Common misspellings (14)
`sstyrofoam`, `stryofoam`, `sttyrofoam`, `styorfoam`, `styrfooam`, `styrofaom`, `styroffoam`, `styrofoamm`, `styrofoma`, `styroofam`, `styrrofoam`, `styyrofoam`, `sytrofoam`, `tsyrofoam`

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