Sixty

• POS: Definite Article, Noun
• HYPHEN: six=ty

CIDE DICTIONARY

Sixty, a. [AS. siextig; akin to G. sechzig, Goth. saíhs tigjus. See Six, Ten, and cf. Sixteen.].

 Six times ten; fifty-nine and one more; threescore.  [1913 Webster]

Sixty, n. 

•  The sum of six times ten; sixty units or objects.  [1913 Webster]
•  A symbol representing sixty units, as 60, lx., or LX.  [1913 Webster]

OXFORD DICTIONARY

Sixty, n. & adj.
--n. (pl. -ies)
1 the product of six and ten.
2 a symbol for this (60, lx, LX).
3 (in pl.) the numbers from 60 to 69, esp. the years of a century or of a person's life.
4 a set of sixty persons or things.
--adj. that amount to sixty.

Idiom

sixty-first, -second , etc. the ordinal numbers between sixtieth and seventieth. sixty-fourmo (pl. -os)
1 a size of book in which each leaf is one-sixty-fourth of a printing-sheet.
2 a book of this size (after DUODECIMO etc.). sixty-fourth note esp. US Mus. = HEMIDEMISEMIQUAVER. sixty-four thousand (or sixty-four) dollar question a difficult and crucial question (from the top prize in a broadcast quiz show). sixty-one, -two , etc. the cardinal numbers between sixty and seventy.

Derivative

sixtieth adj. & n. sixtyfold adj. & adv.

Etymology

OE siextig (as SIX, -TY(2))

ROGET THESAURUS

Sixty

Five

N five, five, cinque, quint, quincux, six, half-a- dozen, half dozen, seven, eight, nine, three times three, dicker, ten, decade, eleven, twelve, dozen, thirteen, long dozen, baker's dozen, quintuplet, twenty, score, twenty-four, four and twenty, two dozen, twenty-five, five and twenty, quarter of a hundred, forty, two score, fifty, half a hundred, sixty, three score, seventy, three score and ten, eighty, four score, ninety, fourscore and ten, sestiad, hundred, centenary, hecatomb, century, hundredweight, cwt, one hundred and forty-four, gross, thousand, chiliad, millennium, thousand years, grand, myriad, ten thousand, ban, man, ten thousand years, banzai, lac, one hundred thousand, plum, million, thousand million, milliard, billion, trillion, five, quinary, quintuple, fifth, senary, sextuple, sixth, seventh, septuple, octuple, eighth, ninefold, ninth, tenfold, decimal, denary, decuple, tenth, eleventh, duodenary, duodenal, twelfth, in one's 'teens, thirteenth, vicesimal, vigesimal, twentieth, twenty-fourth, vicenary, vicennial, centuple, centuplicate, centennial, centenary, centurial, secular, hundredth, thousandth.