THIRTY

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 Dictionary entry overview: What does thirty mean? 

• THIRTY (noun)
  The noun THIRTY has 1 sense:

1. the cardinal number that is the product of ten and three

  Familiarity information: THIRTY used as a noun is very rare.

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

1. being ten more than twenty

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

 Dictionary entry details 

• THIRTY (noun)

Sense 1

Meaning:

The cardinal number that is the product of ten and three

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

30; thirty; XXX

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

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

• THIRTY (adjective)

Sense 1

Meaning:

Being ten more than twenty

Synonyms:

30; thirty; xxx

Similar:

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

 Context examples 

Therefore something had occurred between seven-thirty and nine o’clock which had completely altered her feelings towards him.

(The Memoirs of Sherlock Holmes, by Sir Arthur Conan Doyle)

Then the fight was on, and it went on, without rounds, for thirty minutes, until the press-room door was opened.

(Martin Eden, by Jack London)

He told us “he had been thirty years employing his thoughts for the improvement of human life.”

(Gulliver's Travels into several remote nations of the world, by Jonathan Swift)

By the middle of the second day he had been running continuously for thirty hours, and the iron of his flesh was giving out.

(White Fang, by Jack London)

The complement pathway consists of a series of over thirty proteins in plasma that are part of the immune response.

(Complement Pathway, NCI Thesaurus/BIOCARTA)

It seldom is, at first, and thirty seems the end of all things to five-and-twenty.

(Little Women, by Louisa May Alcott)

Anybody between fifteen and thirty may have me for asking.

(Persuasion, by Jane Austen)

Colonel Fitzwilliam, who led the way, was about thirty, not handsome, but in person and address most truly the gentleman.

(Pride and Prejudice, by Jane Austen)

At four-thirty my task was not yet completed.

(The Return of Sherlock Holmes, by Sir Arthur Conan Doyle)

Then the Zoological Institute's Hall at eight-thirty to-night.

(The Lost World, by Sir Arthur Conan Doyle)