tinfoil tin-filled • tin foil · · · Info · Definitions · Synonyms · Characters · · tinfoil · · Text Latin · · Script 7 · · Length 2 · · Syllables Definitions · · · (noun) foil made of tin or an alloy of tin and lead. Synonyms: tin foil. · · Noun Definition 1 Synonyms · · · tin foil · · Synonym 1 Characters · · f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074