X
Dictionary entry overview: What does X mean?
• X (noun)
The noun X has 3 senses:
1. the cardinal number that is the sum of nine and one; the base of the decimal system
2. the 24th letter of the Roman alphabet
3. street names for methylenedioxymethamphetamine
Familiarity information: X used as a noun is uncommon.
• X (adjective)
The adjective X has 1 sense:
1. being one more than nine
Familiarity information: X used as an adjective is very rare.
Dictionary entry details
• X (noun)
Meaning:
The cardinal number that is the sum of nine and one; the base of the decimal system
Classified under:
Nouns denoting quantities and units of measure
Synonyms:
X; tenner; ten; 10; decade
Hypernyms ("X" is a kind of...):
large integer (an integer equal to or greater than ten)
Meaning:
The 24th letter of the Roman alphabet
Classified under:
Nouns denoting communicative processes and contents
Synonyms:
letter x; X; ex
Hypernyms ("X" is a kind of...):
alphabetic character; letter; letter of the alphabet (the conventional characters of the alphabet used to represent speech)
Holonyms ("X" is a member of...):
Latin alphabet; Roman alphabet (the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe)
Meaning:
Street names for methylenedioxymethamphetamine
Classified under:
Nouns denoting man-made objects
Synonyms:
cristal; disco biscuit; hug drug; XTC; go; Adam; ecstasy; X
Hypernyms ("X" is a kind of...):
MDMA; methylenedioxymethamphetamine (a stimulant drug that is chemically related to mescaline and amphetamine and is used illicitly for its euphoric and hallucinogenic effects; it was formerly used in psychotherapy but in 1985 it was declared illegal in the United States)
• X (adjective)
Meaning:
Being one more than nine
Synonyms:
10; ten; x
Similar:
cardinal (being or denoting a numerical quantity but not order)
