Definition of "representation"

representation¹

/ˌɹɛp.ɹə.zɛn.ˈteɪ.ʃən/

noun
countable and uncountable, plural representations
1. That which represents something else.
  Quotations
  The second and third quarters of the shield are indecipherable on the stone but clearer in two other representations of the arms, a painted wooden funeral hatchment for Mary Davie […]
  2012 October 8, Daniel W. Patterson, The True Image: Gravestone Art and the Culture of Scotch Irish Settlers in the Pennsylvania and Carolina Backcountry‎, UNC Press Books, page 141
2. The act of representing.
  Quotations
  That's according to a report published in The Guardian on New Year's Eve in which several regional leaders, including Greater Manchester Mayor Andy Burnham and Liverpool City Region Mayor Steve Rotheram, were highly critical of the apparent lack of northern representation in the decision-making process.
  2022 January 12, Paul Stephen, “Network News: Vere admits to Lords: IRP lacks information”, in RAIL, number 948, page 11
3. (law) The lawyers and staff who argue on behalf of another in court.
4. (politics) The ability to elect a representative to speak on one's behalf in government; the role of this representative in government.
5. (mathematics) An object that describes an abstract group in terms of linear transformations of vector spaces; (more formally) a homomorphism from a group on a vector space to the general linear group (group of all bijective linear transformations) on the space.
6. A figure, image or idea that substitutes reality.
7. A theatrical performance.
8. A statement; a presentation of opinion or position, or an utterance made to influence the opinions or actions of others

representation²

/ˌɹiː.pɹə.zɛn.ˈteɪ.ʃən/

noun
plural representations
1. (medicine) An act of representing, i.e. presenting again.