(transitive, idiomatic) To make (something) a practical reality.

Commercial activity that is possibly dishonest while not actually being illegal. / (law) A lawyer's unfairly taking advantage of an opposing party's missteps or inexperience to gain an advantage.

A playful trick done for amusement to the detriment of someone else.

A set of guidelines and regulations to be followed by members of some profession, trade, occupation, organization etc.; does not normally have the force of law.

A person who is certified to provide custodial care such as help in walking, bathing, and feeding.

(chemistry) The study of ancient alchemy using the knowledge and techniques of modern chemistry in order to advance the understanding of the history of chemistry.

plural of practical effect

the usual procedure followed in business, or a particular business.

(film) A special effect produced physically, without computer-generated imagery or other postproduction techniques.

(philosophy) The use of reason to decide how to act.