Placed or situated under or beneath.Being under the power or dominion of another.Exposed; liable, from extraneous or inherent causes; prone: with to: as, a country subject to extreme heat or cold; a person subject to attacks of fever.Hence Exposed or liable, as to what may confirm or modify: with to: as, subject to your approval; subject to correction.Submissive; obedient.Synonyms Subordinate, subservient, inferior.Apt, Likely, etc. See apt.n. One who is placed under the authority, dominion, or controlling influence of another; specifically, one who owes allegiance to a sovereign and is governed by his laws; one who lives under the protection of, and owes allegiance to, a government.n. A person or thing regarded as the recipient of certain treatment; one who or that which is exposed or liable to something specified.n. Specifically— A dead body used for dissection.n. One who is peculiarly sensitive to psychological experimentation; a sensitive.n. One who or that which is the cause or occasion of something.n. That on which any mental operation is performed; that which is thought, spoken, or treated of: as, a subject of discussion or negotiation; a subject for a sermon or a song; the subject of a story.n. In grammar, that of which anything is affirmed; the nominative of a verb, without or with modifiers; the member or part of a sentence signifying that of which predication is made.n. In logic, that term of a proposition of which the other is affirmed or denied.n. In metaphysics: A real thing to which given characters relate and in which they are said to inhere.n. In Kantian and modern philosophy, the self or ego to which in all thought all mental representations are attributed (according to Kant); also, a real (hypothetical) thing in which mental phenomena are supposed to inhere.n. In music: In general, the theme or melodic phrase on which a work or movement is based, consisting of few or many tones variously combined and treated; a motive. When two or more principal subjects are used, they are often known as first, second, etc.n. In contrapuntal works, the theme given out at the beginning, to which (in fugue and canon) the answer responds, and with which the counter-subject is combined which is taken as the basis for thematic development, for imitation, etc.n. In the fine arts, the plan or general view chosen by an artist; the design of a composition or picture; the scheme or idea of a work of art: as, a historical subject; a genre subject; a marine subject; a pastoral subject.n. In decorative art, a pictorial representation of human figures or animals; a picture representing action and incident.n. Synonyms Subject, Theme, Topic, Point, Thesis. The first three of these words are often popularly used as exactly synonymous. Daniel Webster puts within a few lines of each other the two following sentences: [If an American Thucydides should arise,] “may his theme not be a Peloponnesian war,” and [American history] “will furnish no topic for a Gibbon.” Yet, strictly in rhetoric, and more often in general use, subject is the broad word for anything written or spoken about, while theme is the word for the exact and generally narrower statement of the subject. A topic is a still narrower subject; there may be several interesting topics suggested under a single subject. A point is by its primary meaning the smallest possible subdivision under a subject. Thesis is a technical word for a subject which takes the form of an exact proposition or assertion which is to be proved: as, Luther fastened his ninety-five theses to the church-door. The paper in which the proof of a thesis is attempted is also called a thesis. A student's composition is often called a theme. The meaning of the other words is not extended to the written or spoken discourse. See proposition.To put, lay, or spread under; make subjacent.To expose; make liable or obnoxious: with to: as, credulity subjects one to impositions.To submit; make accountable, subservient, or the like; cause to undergo; expose, as in chemical or other operations: with to: as, to subject clay to a white heat.To bring under power, dominion, or sway; subdue; subordinate.To be or become subject.n. In geometry, the figure cut by the picture-plane.n. In experimental psychology: The observer or reactor; the person upon whom an experiment is made.n. More correctly, the person, normal or abnormal in mental condition, who is subjected to a mental test or an examination of mental efficiency.