Subject ( la, subiectus "lying beneath") may refer to:

Philosophy

*'' Hypokeimenon'', or ''subiectum'', in metaphysics, the "internal", non-objective being of a thing **

Subject (philosophy) A subject is a being who has a unique consciousness and/or unique personal experiences, or an entity that has a relationship with another entity that exists outside itself (called an "object"). A ''subject'' is an observer and an ''object'' is ...

, a being that has subjective experiences, subjective consciousness, or a relationship with another entity

Linguistics

Subject (grammar) The subject in a simple English sentence such as ''John runs'', ''John is a teacher'', or ''John drives a car'', is the person or thing about whom the statement is made, in this case ''John''. Traditionally the subject is the word or phrase whi ...

, who or what a sentence or a clause is about *

Subject case In grammar, the nominative case (abbreviated ), subjective case, straight case or upright case is one of the grammatical cases of a noun or other part of speech, which generally marks the subject of a verb or (in Latin and formal variants of Engl ...

or nominative case, one of the grammatical cases for a noun

Music

Subject (music) In music, a subject is the material, usually a recognizable melody, upon which part or all of a composition is based. In forms other than the fugue, this may be known as the theme. Characteristics A subject may be perceivable as a complete mus ...

, or 'theme' * The melodic material presented first in a

fugue In music, a fugue () is a contrapuntal compositional technique in two or more voices, built on a subject (a musical theme) that is introduced at the beginning in imitation (repetition at different pitches) and which recurs frequently in the c ...

* Either of the two main groups of themes (first subject, second subject), in

sonata form Sonata form (also ''sonata-allegro form'' or ''first movement form'') is a musical form, musical structure generally consisting of three main sections: an exposition, a development, and a recapitulation. It has been used widely since the middle ...

* ''Subject'' (album), a 2003 album by Dwele

Science and technology

* The individual, whether an adult person, a child or infant, or an animal, who is the subject of research.

Computing

* Subjects (programming), core elements in the subject-oriented programming paradigm * Subject (access control) * An element in the

Resource Description Framework The Resource Description Framework (RDF) is a World Wide Web Consortium (W3C) standard originally designed as a data model for metadata. It has come to be used as a general method for description and exchange of graph data. RDF provides a variety of ...

* Subject (iMedia), Computer Science focuses on what happens inside a computer including programming, networking, security and cyber security. Creative iMedia focuses on the creative aspects such as graphics, video, animation and games design.

Library science and information science

* Subject (documents) (subject classification; subject indexing; subject searching) * Subject term or index term, a descriptor of a document used in bibliographic records

Other uses

Commoner A commoner, also known as the ''common man'', ''commoners'', the ''common people'' or the ''masses'', was in earlier use an ordinary person in a community or nation who did not have any significant social status, especially a member of neither ...

, an individual subjected to rule by an elite, e.g. in feudalism * Subject in a modern constitutional monarchy, e.g.

British subject The term "British subject" has several different meanings depending on the time period. Before 1949, it referred to almost all subjects of the British Empire (including the United Kingdom, Dominions, and colonies, but excluding protectorates ...

* Course (education), a unit of academic instruction