Separate and distinct from others of the same kind; treated individually.

If that is the way things are, if that's the case.

(informal) Actively working on something.

Used to show that an anterior explanation does not apply or does not adequately describe the situation.

A box that contains or can contain a number of identical items of manufacture. / A box, sheath, or covering generally.

(poker slang) The last remaining card of a particular rank.

(transitive) To place (an item or items of manufacture) into a box, as in preparation for shipment. / (transitive) To cover or protect with, or as if with, a case; to enclose.

An actual event, situation, or fact. / (now rare) A given condition or state. / A piece of work, specifically defined within a profession. / (academia) An instance or event as a topic of study.

(obsolete) to propose hypothetical cases

(computing, software) computer-aided software engineering. / (manufacturing) coatings, adhesives, sealants and elastomers.