(transitive) To hit or knock (something or someone), intentionally or accidentally, so that it falls. / (transitive) To demolish.

(idiomatic) To put forth the needed effort; to focus; become serious; apply oneself (e.g. to work or study).

Diluted; containing extra water. / (colloquial, figuratively) Weakened or simplified

To attach or secure with pins. / (idiomatic) To identify something (e.g. a decision or plan) clearly or specifically.

(transitive) to attach with nails / (idiomatic, transitive) to make something (e.g. a decision or plan) firm or certain

To dilute; to add water to. / (idiomatic) To make weaker. / (idiomatic) To simplify or oversimplify; to make easier; to make less difficult. / (idiomatic) To make less restrictive; to make more lenient.

a depreciation, or a lowering in the price or value of something

Used other than figuratively or idiomatically: see write, down. / (transitive) To set (something) down in writing; to record something.

(transitive, idiomatic) To defeat (some measure or candidate) by a majority vote.

(American football) The first play in a series that has a maximum of four downs.