Definify.com
Webster 1913 Edition
Thirty
Thir′ty
,Adj.
[OE.
thritty
, AS. þrītig
, þrittig
; akin to D. dertig
, G. dreissig
, Icel. þrjātīu
, þrjātigi
, þrir teger
, Goth. þreis tigjus
, i.e., three tens. See Three
, and Ten, and cf. Thirteen
.] Being three times ten; consisting of one more than twenty-nine; twenty and ten;
as, the month of June consists of
. thirty
daysThir′ty
,Noun.
pl.
Thirties
. 1.
The sum of three tens, or twenty and ten; thirty units or objects.
2.
A symbol expressing thirty, as 30, or XXX.
Webster 1828 Edition
Thirty
THIRTY
,Adj.
Definition 2024
thirty
thirty
English
< 29 | 30 | 31 > |
---|---|---|
Cardinal : thirty Ordinal : thirtieth | ||
Alternative forms
Numeral
thirty
- The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.
Derived terms
See also
- (ordinal: the last of 30): thirtieth, trigesimal
- (adjectival form): tricenary
- (around 30): thirtyish
- (containing 30 of something): trigesimal
- (a 30-year-old person): tricenarian, thirtysomething
- (every 30 years): tricennial, trigintennial
- (30-sided figure): triacontahedron
- (30-sided): triacontahedral
Translations
cardinal number
|
|
Noun
thirty (plural thirties)
References
- 1 2 “thirty” in Merriam-Webster Online Dictionary, Merriam-Webster Online.
- 1 2 “thirty” in Dictionary.com Unabridged, v1.0.1, Lexico Publishing Group, 2006.
- ↑ Macmillan (US) (compare Macmillan (UK)
- ↑ the Oxford Advanced Learner's Dictionary