Expression may refer to:

Linguistics

* Expression (linguistics), a word, phrase, or sentence * Fixed expression, a form of words with a specific meaning *

Idiom An idiom is a phrase or expression that typically presents a figurative, non-literal meaning attached to the phrase; but some phrases become figurative idioms while retaining the literal meaning of the phrase. Categorized as formulaic language, ...

, a type of fixed expression * Metaphorical expression, a particular word, phrase, or form of words that has a different meaning than its literal form *

Expression (sign language) In sign languages, expressions are the distinctive body postures and facial expressions that accompany signing, and which are necessary to properly form words. Expression is one of five components of a sign, along with handshape (), orientation (), ...

, the expressions and postures of the face and body that contribute to the formation of words when signing

Symbolic expression

* Expression (architecture), implies a clear and authentic displaying of the character or personality of an individual person *

Expression (mathematics) In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context. Mathematical symbols can designate numbers ( constants), variables, operations, f ...

, a finite combination of symbols that are well-formed according to applicable rules * Expression (computer science), an instruction to execute something that will return a value * Regular expression, a means of matching strings of text in computing * Expression marks, in music, notating the musical dynamics *

Symbolic computation expression In mathematics and computer science, computer algebra, also called symbolic computation or algebraic computation, is a scientific area that refers to the study and development of algorithms and software for manipulating mathematical expressions ...

* S-expression

Bodily expression

* Expression of breast milk in breastfeeding *

Emotional expression An emotional expression is a behavior that communicates an emotional state or attitude. It can be verbal or nonverbal, and can occur with or without self-awareness. Emotional expressions include facial movements like smiling or scowling, simple b ...

, verbal and non-verbal behaviour that communicates emotion * Facial expression, a movement of the face that conveys emotional state *

Gene expression Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect. The ...

, the process by which information from a gene is used in biochemistry

Product names

* ''Expression'' (album), a 1967 album by John Coltrane * ''Expressions'' (Chick Corea album), a 1994 album by Chick Corea * ''Expressions'' (Sarah Geronimo album), 2013 * ''Expressions'', an album by Jon Secada * "Expression" (song), a song by Salt-n-Pepa * ''Expressions'', the annual magazine of Vidyalankar Institute of Technology, Mumbai, India * Microsoft Expression Studio, a digital media and graphic design suite * Ex'pression College for Digital Arts, a college in Emeryville, California for the entertainment industry * ''The Expression'' (album)

Other

* Musical expression * Method of obtaining (vegetable) οil by pressure extraction, such as

Expeller pressing Expeller pressing (also called oil pressing) is a mechanical method for extracting oil from raw materials. The raw materials are squeezed under high pressure in a single step. When used for the extraction of food oils, typical raw materials are ...

* Self-expression values

Linguistics

Symbolic expression

Bodily expression

Product names

Other

See also