(mathematics) A function to be maximized or minimized in optimization theory.

(grammar) A pronoun that is used as the object of a sentence, such as "me", "him" or "us" in English.

A natural object, or one manufactured for some other purpose, considered as a work of art.

(grammar) the form of a noun or pronoun used as the object of a verb or a preposition.

(grammar, in languages without cases) The noun or noun phrase that a verb is directly acting upon.

(grammar) A grammatical role of a ditransitive verb that manifests a secondary or passive participant in an action, often a recipient or goal.

A lesson taught (especially to young children) using a familiar or unusual object as a focus. / An example from real life that explains a principle or teaches a lesson.

In behaviorist-based instructional design processes, an expected outcome of an instructional unit. A well-constructed behavioral objective consists of three parts: conditions, behavior, and criteria.

(programming) Using entities called objects that can process data and exchange messages with other objects.

The region of space containing objects that an optical system can form images of.