Princeton's WordNet(4.00 / 2 votes)Rate this definition:

1. thirty, 30, XXX(adj)

   the cardinal number that is the product of ten and three

2. thirty, 30, xxx(adj)

   being ten more than twenty

Wiktionary(2.00 / 1 vote)Rate this definition:

1. thirty(Noun)

   A rack of thirty beers.

2. thirty(Numeral)

   The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.

Origin: þritig

Webster Dictionary(0.00 / 0 votes)Rate this definition:

1. Thirty(adj)

   being three times ten; consisting of one more than twenty-nine; twenty and ten; as, the month of June consists of thirty days

2. Thirty(noun)

   the sum of three tens, or twenty and ten; thirty units or objects

3. Thirty(noun)

   a symbol expressing thirty, as 30, or XXX

Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

1. Thirty

   thėr′ti, adj. and n. three times ten.—adj. Thir′tieth, the last of thirty.—n. a thirtieth part. [A.S. thrítig—threó, three, -tig, suff. denoting ten.]

British National Corpus

1. Spoken Corpus Frequency

   Rank popularity for the word 'thirty' in Spoken Corpus Frequency: #2555

2. Written Corpus Frequency

   Rank popularity for the word 'thirty' in Written Corpus Frequency: #221

Numerology

1. Chaldean Numerology

   The numerical value of thirty in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of thirty in Pythagorean Numerology is: 1

Examples of thirty in a Sentence

1. Barbra Streisand:

   Thirty years ago... Folks, times up.

2. H.L. Mencken:

   A poet more than thirty years old is simply an overgrown child.

3. Dana Carvey:

   I'm thirty years old, but I read at the thirty-four-year-old level.

4. John Shiau:

   Thirty percent of people who have had a fusion end up having SI pain.

5. Deena Katz:

   People have a thirty-second memory, we're used to an instant turnaround.

Images & Illustrations of thirty

Popularity rank by frequency of use