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tinfoil

noun, verb — 3 senses

tinfoil

noun

Etymology From tin + foil.

1

A thin, pliable sheet of tin or an alloy of tin and lead, used as a protective wrapping.

2

Informal Aluminium foil.

Derived terms
tinfoil hat, tinfoily
Related terms
tin can

tinfoil

verb

Etymology From tin + foil.

1

To cover in tinfoil.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.