tinfoil
tinfoil Lexical Profile
tinfoil Game Scores & Validity
• noun
A pliable, paper-thin sheet of aluminum, tin, or an alloy of tin and lead, used primarily for wrapping, preserving, and cooking food.
"She wrapped the leftover baked potatoes in tinfoil before placing them in the refrigerator."
• adjective
Characterized by or relating to paranoid, unfounded conspiracy theories (derived from the trope of wearing a tinfoil hat for protection against mind control).
"The commentator dismissed the allegations as tinfoil speculation with no basis in reality."
• verb
To cover, wrap, or line something with thin metal foil.
"We tinfoiled the baking tray to make cleaning up after roasting the vegetables much easier."
Word Nuance & Usage
Although true tinfoil was superseded by aluminum foil after World War II because tin imparted a metallic taste to food and was more expensive, 'tinfoil' remains widely used in everyday speech as an informal synonym for aluminum foil.
Word Origin & Etymology
Formed in Middle English as a compound of 'tin' (from Old English 'tin') and 'foil' (from Old French 'fueille', meaning 'leaf' or 'thin sheet', ultimately from Latin 'folium').
Usage Trend
Historical frequency of usage in published text.