x
Noun:
- The 24th letter of the English alphabet: "X" is a letter used in writing.
- The Roman numeral for ten: "X" represents the number 10 in the Roman numeral system.
- An unknown or unspecified variable, quantity, or factor: In mathematics and general use, "x" often symbolizes something unknown or to be solved for.
- (Slang) A street name for the drug MDMA (Ecstasy): In informal contexts, "X" can refer to this specific substance.
Adjective:
- Denoting a rating or classification for adult content: "X" is used as a label for films, videos, or other media containing explicit adult material.
- Being one more than nine; ten: Representing the quantity ten, though this adjectival use is less common than the noun form for the numeral.
Noun:
- The word "xylophone" starts with the letter X.
- In Roman numerals, X equals 10.
- Solve for x in the equation 2x + 5 = 15.
- (Informal/Slang) The partygoers were suspected of using X.
Adjective:
- That movie has an X rating due to its graphic content.
- He marked the spot with a large X. (Here, "X" functions adjectivally to describe the type of mark).
"X marks the spot": A phrase indicating the exact location of something, often on a map.
- According to the treasure map, X marks the spot where the chest is buried.
"Generation X": Refers to the generation of people born roughly between the mid-1960s and early 1980s.
- My parents are part of Generation X.
"X-factor": An unknown or indefinable quality that makes something or someone distinctive or successful.
- The singer has a certain X-factor that makes her performances captivating.
X-ray (n/v): A type of radiation used for imaging, or the image itself; to examine with such radiation.
- The doctor ordered an X-ray of my chest.
Xenon (n): A chemical element (symbol Xe).
- X-axis (n): The horizontal axis on a graph.
- Unknown: (for the variable sense) variable, unknown quantity.
- Ten: (for the numeral sense) decade, 10.
- Adult: (for the rating sense) explicit, mature.
X out (phrasal verb): To cross out or delete something with an X or lines.
- Please X out the incorrect answers on your form.
X something off: To mark an item on a list with an X to show it is completed.
- I like to X off each task as I finish it.
To ex something: (A play on words, from "X") Sometimes used informally to mean "to cancel or reject," derived from "x out."
- The network decided to ex the poorly rated show.
Kiss of death: Sometimes symbolized by an "X," though not exclusively. More directly, an "X" can symbolize a kiss in written correspondence (e.g., "Love, Sam xxx").
- being one more than nine
- street names for methylenedioxymethamphetamine
- the 24th letter of the Roman alphabet
- the cardinal number that is the sum of nine and one; the base of the decimal system