Definition: To make a bet or to put something at risk in a game or situation.

Example: He decided to impone a large sum of money on the outcome of the game.

Definition: The quality of being significant or valuable; the state of being important.

Example: The importance of education cannot be overstated.

Definition: Having great significance or value; something that matters a lot or has a strong effect on a situation.

Example: It is important to study regularly to succeed in school.

Definition: The quality of being persistent or demanding in a way that can be annoying or troublesome.

Example: His importunateness made it difficult for her to focus on her work.

Definition: A situation or condition that cannot happen or be done.

Example: The impossibility of finding a solution made everyone feel hopeless.

Definition: Something that cannot be done or achieved; it is extremely difficult or not possible to accomplish.

Example: Climbing that mountain without proper gear is impossible.

Definition: The state or quality of being impossible; something that cannot happen or exist.

Example: The impossibleness of the task made everyone feel discouraged.

Definition: A noun that refers to something that is imposed, such as a tax or duty, or the upper part of a column that supports an arch.

Example: The impost on luxury goods has increased this year.

Definition: A person who pretends to be someone else in order to trick others, often by using a false identity.

Example: The imposter managed to fool everyone at the party by pretending to be a famous actor.

Definition: A person who pretends to be someone else in order to deceive others.

Example: The impostor managed to trick everyone at the party by pretending to be a famous actor.