# X in Maths topic

From Longman Dictionary of Contemporary EnglishXX1, x /eks/ (plural X’s, x’s) noun 1 letter [countable, uncountable]SLA the 24th letter of the English alphabet2 HMNnumber [countable] the number 10 in the system of roman numerals3 mathematics [uncountable] technicalHM a letter used in mathematics to represent an unknown quantity or value if 3x = 6, x = 24 on school workSEWRONG/INCORRECT [countable] a mark used on school work to show that a written answer is not correct5 when votingPPVCHOOSE [countable] a mark used to show that you have chosen something on an official piece of paper, for example when voting6 on a letterTCMKISS [countable] a mark used to show a kiss, especially at the end of a letter Love, Cindy XXX7 film [singular, uncountable]AMF used in the past to describe a film that was officially approved as only suitable for people over 18 syn 18 → X-rated8 NAME OF A PERSONunknown/secret nameSECRET [uncountable] a letter used instead of someone’s or something’s real name because you want to keep it secret or you do not know it At the trial, Ms X said that she had known the defendant for three years.9 when signing your nameSIGN YOUR NAME [countable] a mark used instead of a signature by someone who cannot write10 → X number of people/things11 → X marks the spot

Examples from the Corpus

X• Love, Cindy XXOXX• Suppose Mrs. X wants to make a donation. How can she be sure how her money will be used?• If 3x=6, then x=2.
Explore Maths Topic

- sum
- equal
- expression
- cube
- variable
- C
- equals sign
- minute
- calculus
- minus sign
- set square
- circumference
- theorem
- bisect
- percentage
- proposition
- ruler
- scatter diagram
- cubic
- base
- circumscribe
- y-axis
- improper fraction
- plus sign
- quadri-
- dimension
- multiply
- plane geometry
- work
- value
- hexagon
- pi
- formula
- proof
- slide rule
- radius
- subset
- triangle
- obtuse angle
- compute