(of a book) Having a hardcover; hardback

Open ground, having a hard surface, used for the storage of material or the parking of vehicles

A high-density chipboard.

(ball games) In baseball, a type of ball and baseball game, as opposed to softball. / Tough or ruthless behavior, especially in combat, politics or business.

Being or exhibiting tough or ruthless behavior, especially in combat, politics or business.

(transitive) To exhibit tough and ruthless behavior towards.

(idiomatic, chiefly US) The source of an education consisting of real-world experiences, especially adverse experiences.

A firm stance or policy on which one will not compromise

In a situation that is difficult to resolve.

Sexual harassment in writing. / Aggressive, distorting literary or textual criticism. / Sexual harassment using text messages; compare textual intercourse, sexting.