(idiomatic) Something that is useful or that creates a favorable opportunity.

Alternative form of putty in someone's hands

(idiomatic) To postpone a decision or action; to procrastinate.

The story is usually depicted as follows.

(idiomatic, euphemistic, poetic) dead

(geometry) To construct a square with the same area as a given circle by using only a finite number of steps with compass and straightedge, a task which is mathematically impossible.

(philately) Having a cancellation mark, typically round, centered on the stamp.

To aim high; to set lofty goals.

(humorous) Quite expensive. / (from misunderstanding) Satisfactorily cheap.

(pharmacology) Not over-the-counter.