Foil: meaning, definitions and examples

Typically used to describe a thin sheet of metal or material that can be used for blocking or covering. It can also be used metaphorically to describe someone or something that contrasts with another, often to highlight particular qualities.

• He wrapped the leftovers in foil to keep them fresh.
• In the story, the villain serves as a perfect foil to the hero.

Specifically refers to thin sheets made of aluminum, commonly used in cooking or food storage to preserve freshness, heat, or flavor.

• She covered the baking dish with aluminum foil to keep the moisture in.
• Aluminum foil is great for wrapping sandwiches to take on a picnic.

Often used interchangeably with aluminum foil, although strictly speaking, it refers to a much older material originally made from tin. Modern usage generally means aluminum foil, but with an old-fashioned or informal connotation.

• Grandma still calls it tin foil even though it's been aluminum for years.
• Can you pass me the tin foil? I need to cover this dish.

Used when describing actions that prevent someone from achieving their goal, often in a clever or subtle manner.

• The detective foiled the criminal's plan to rob the bank
• His quick thinking foiled her attempt to cheat on the exam

Similar to 'foil', but often implies a stronger or more determined effort to prevent someone's plans from succeeding.

• The hero thwarted the villain's plot to take over the city
• Despite their best efforts, they were thwarted at every turn

Describes a situation where plans or efforts are hindered, often leading to feelings of annoyance or dissatisfaction.

• The heavy traffic frustrated their attempt to arrive on time
• She was frustrated by the constant interruptions in her work

Commonly used in competitive situations such as sports, games, or war when one side wins over the other.

• The team managed to defeat their opponents in the final match
• The army defeated the enemy and claimed victory