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thirty

thirty

1.0
A number equal to three groups of ten
  • numeral
  • /ˈθɜrti/
translation icon : treinta
  • You know, for the last, oh, thirty years or so, I've gotten to be friends with Warren Buffett.
  • thirty years
  • thirty years old
  • thirty years later

And John Maxwell, I've probably read thirty of his books.

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Examples

  • She has thirty apples in her basket, enough to share with everyone.

  • Hi ya, so in the past anyone could use their mobile phone in one of thirty countries the same way they would at home.

  • So yeah, like even out of the initial thirty of us is a huge number.

  • And we all walked past it, like all thirty of us, for some reason.

  • I had thirty of these episodes over a six month period.

  • One, aim for diversity in your diet, including thirty different plant types each week.

  • Yakov had lived in America for thirty years, but he did not speak English.

    Fiction book (1990)
  • So with that being said, if you want to see my top thirty favorite for liquid lipsticks, well, here you go.

  • The beginning musician group had thirty-minute lessons each week, and the study lasted for four years.

    Academic text (2011)
  • The goat was tethered in the center of the field, thirty yards from the nearest trees.

    Fiction book (1990)

Synonyms

XXX
vsthirty
4.2

Thirty written with three capital X letters in Roman numerals

is the same number but shown in digits or words

Compounds

One of thirty-two equal parts of a whole

thirty-something
  • Informal
4 3.4

A person aged between 30 and 39 or the years between those ages

A number written as 130 and equal to one hundred plus thirty

A long war across central Europe from 1618 to 1648 between Protestant and Catholic states

A number that is five more than one hundred thirty

It comes after one hundred and thirty-four in order

9.9

A very early time in the morning before dawn that people say as a joke

One of thirty-two equal parts of a whole

thirty-second note
  • Specialized
8.4

A very short sound in music that lasts one thirty-second of a whole note

One of thirty-two equal pieces of a whole

How Many

fifty
1.0
forty-nine
12 1.0
forty
644 1.0
thirty
1.0
twenty
1.0
ten
311 1.0
zero
1.0

Surface Forms

thirty cardinal word
30 cardinal digit

Morphology

thirty = three (transparent) = three + ty

The meaning is directly derived from 'three' + the productive nominal suffix '-ty' forming the tens (slight spelling change three→thir does not obscure the relation).

Etymology

The word thirty comes from joining three and the old number ending -ty, which meant 'group of ten'. So it originally meant 'three tens', which is why thirty is ten more than twenty.