thou·sand /ˈθaʊzṇ(d)/
 千一千個一組;許許多多,無數(a.)許許多多的,無數的


 Thou·sand n.
 1. The number of ten hundred; a collection or sum consisting of ten times one hundred units or objects.
 2. Hence, indefinitely, a great number.
    A thousand shall fall at thy side, and ten thousand at thy right hand.   --Ps. xci. 7.
 Note: ☞ The word thousand often takes a plural form. See the Note under Hundred.
 3. A symbol representing one thousand units; as, 1,000, M or CI

From: Webster's Revised Unabridged Dictionary (1913)

 Thou·sand, a.
 1. Consisting of ten hundred; being ten times one hundred.
 2. Hence, consisting of a great number indefinitely. “Perplexed with a thousand cares.”

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From: WordNet (r) 2.0

 thousand
      adj : denoting a quantity consisting of 1,000 items or units [syn:
             a thousand, one thousand, 1000, m, k]
      n : the cardinal number that is the product of 10 and 100 [syn:
          one thousand, 1000, M, K, chiliad, G, grand,
           thou, yard]