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Use as a multiplication sign is usually attributed to English mathematician William Oughtred.

In English, the × symbol is usually read as times, but also as x (/ˈɛks/), timesed by, multiplied by or simply by (as in 4×4 or 2×4).
The collaboration sense uses to be read as the name of the letter x in the embedding language.
The biological hybrid sense likewise can be expressed as the name of the letter x, in English, as well as cross, by, a preceding hybrid species, silence, and by other solutions.
The sense "times", as in 2× as much soap, can be pronounced times or x.

(arithmetic) Multiplication.
7 × 8 = 56
(set theory, category theory) Cartesian product, categorical product.
{1,2} × {3,4} = {(1,3),(1,4),(2,3),(2,4)}
(linear algebra) Vector product, cross product.
(1,2,5) × (3,4,−1) = (−22, 16, −2)
(taxonomy) Used in various ways to indicate hybridization between two or more different taxa.
Crocosmia × crocosmiiflora; Ursus maritimus × Ursus arctos
(music, fashion, etc.) Used to denote collaboration in the design, execution or branding of a piece.
- 2022 July 23, Gargi Harjai, “Where to buy the John Richmond × Playboy collection? Price, release date, and more explored”, in Sportskeeda‎^[1] (in English):
Used to denote the geometric dimensions of an object.
The dimensions of the box are 60 cm × 60 cm × 52 cm.
Times. (Often written x.)
2× as much soap as a regular bottle!
- 2011, Dmitry Telnov, Biodiversity, Biogeography and Nature Conservation in Wallacea and New Guinea: Volume 1 (in German), →ISBN, page 204:
  Apikalglied nicht besonders lang, beim Männchen etwa doppelt so lang wie das vorletzte Glied. [...] Beine lang und schlank. Das Basalglied der Hintertarsen 1,3× so lang wie die restlichen Glieder zusammen.
  (please add an English translation of this quotation)

For quotations using this term, see Citations:×.

Used to refer to something not specified. Usually read as 某 (mǒu).
王× ― wáng mǒu ― Mr./Ms. Wang; someone surnamed Wang
Used to replace offensive characters. Usually read as 叉 (chā).
傻× ― shǎ chā ― stupid [censored]

×(ばつ) or ×(バツ) • (batsu)

×(ペケ) • (peke)

A rarely used punctuation mark like semicolon (;).
ꠎꠦꠁꠝꠔꠦ ꠨ ꠡꠣꠘ꠆ꠍꠤꠟ ꠨ ꠖꠘ ꠨ ꠡꠦꠁ ꠨ ꠝꠔꠦ ꠨ ꠙꠣꠄ ×
zeimote, śansilo, don, śei, mɔte, fae;
the way, save, savings, that, way, get;