Thousand

adj. numbering 1000

n. number 1000

1000 (one thousand) is the natural number following 999 and preceding 1001. The letter A does not appear in the English spelling of any number lower than "one thousand".
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Noun
1. the cardinal number that is the product of 10 and 100
(synonym) one thousand, 1000, M, K, chiliad, G, grand, thou, yard
(hypernym) large integer
Adjective
1. denoting a quantity consisting of 1,000 items or units
(synonym) a thousand, one thousand, 1000, m, k
(similar) cardinal

(n.)
The number of ten hundred; a collection or sum consisting of ten times one hundred units or objects.
  

(n.)
Hence, indefinitely, a great number.
  

(n.)
A symbol representing one thousand units; as, 1,000, M or CI/.
  

(a.)
Hence, consisting of a great number indefinitely.
  

(a.)
Consisting of ten hundred; being ten times one hundred.
  

a thousand; learned; chief