X

Pronunciation (US):

• 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.

• 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)