noun pl. X's, x's

1. the twenty-fourth letter of the English alphabet: from a western form of the Greek alphabet
2. any of the speech sounds that this letter represents, as, in English, the (ks) of lax, (gz) of exact, (ks̸h) of anxious, (gz̸h) of luxurious, or (z) of xylophone
3. a type or impression for x or X
4. the twenty-fourth in a sequence or group
5. an object shaped like

adjective

1. of x or X
2. twenty-fourth in a sequence or group
3. shaped like

transitive verb x-ed or x'd, x-ing or x'ing

1. to indicate (one's choice or answer) by or as by marking with an
2. to delete or cancel (written or printed matter) with or as with one or more 's: usually used with out

noun

noun

1. the first of a set of unknown quantities, y usually being second
2. a variable
3. an abscissa

1. by (in indicating dimensions) 3 ft x 4 ft
2. the power of magnification (in optical instruments)
3. Math. times

noun

1. a mark shaped like an used:
   1. to represent the signature of a person who cannot write
   2. to indicate a particular point on a map, diagram, etc.
   3. as a symbol for a kiss in letters, etc.
   4. to indicate the degree of fineness of flour, sugar, etc.
2. the Roman numeral 10: with a superior bar (), 10,000: XX = 20, XXX = 30, and X before another Roman numeral expresses a number 10 less than that numeral (XC = 90)
3. a person or thing unknown or unrevealed
4. ☆ a film rating meaning that no one under the age of seventeen is to be admitted

1. Etymology: see XP

   Christ: used also in combination, as in Xmas
2. extra