# tinfoil

> English word · Noun · frequency rank #52,048

## Definitions
1. A thin, pliable sheet of tin or an alloy of tin and lead, used as a protective wrapping.
2. Aluminium foil.

## Etymology
From tin + foil.

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