3 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Thirty \Thir"ty\, a. [OE. thritty, AS [thorn]r[=i]tig,
[thorn]rittig; akin to D. dertig G. dreissig Icel.
[thorn]rj[=a]t[=i]u, [thorn]rj[=a]tigi, [thorn]rir teger,
Goth. [thorn]reis 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 days.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Thirty \Thir"ty\, n.; 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.
From WordNet r 1.6 [wn]:
thirty
adj : being ten more than twenty [syn: {30}, {xxx}]
n : the cardinal number that is the product of ten and three
[syn: {30}, {XXX}]
more about thirty
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