D

Pronunciation (US):

 Dictionary entry overview: What does D mean? 

• D (noun)
  The noun D has 3 senses:

1. a fat-soluble vitamin that prevents rickets
2. the cardinal number that is the product of one hundred and five
3. the 4th letter of the Roman alphabet

  Familiarity information: D used as a noun is uncommon.

• D (adjective)
  The adjective D has 1 sense:

1. denoting a quantity consisting of 500 items or units

  Familiarity information: D used as an adjective is very rare.

 Dictionary entry details 

• D (noun)

Meaning:

A fat-soluble vitamin that prevents rickets

Classified under:

Nouns denoting substances

Synonyms:

vitamin D; viosterol; ergocalciferol; D; cholecarciferol; calciferol

Hypernyms ("D" is a kind of...):

fat-soluble vitamin (any vitamin that is soluble in fats)

Meronyms (substance of "D"):

ergosterol (a plant sterol that is converted into vitamin D by ultraviolet radiation)

Meaning:

The cardinal number that is the product of one hundred and five

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

500; five hundred; D

Hypernyms ("D" is a kind of...):

large integer (an integer equal to or greater than ten)

Meaning:

The 4th letter of the Roman alphabet

Classified under:

Nouns denoting communicative processes and contents

Synonyms:

letter d; D

Hypernyms ("D" is a kind of...):

alphabetic character; letter; letter of the alphabet (the conventional characters of the alphabet used to represent speech)

Holonyms ("D" 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)

• D (adjective)

Meaning:

Denoting a quantity consisting of 500 items or units

Synonyms:

500; d; five hundred

Similar:

cardinal (being or denoting a numerical quantity but not order)