Possible Definitions:
1. Thousand (n.) The number of ten hundred; a collection or sum consisting of ten times one hundred units or objects.
2. Thousand (n.) Hence, indefinitely, a great number.
3. Thousand (n.) A symbol representing one thousand units; as, 1,000, M or CI/.
4. Thousand (a.) Consisting of ten hundred; being ten times one hundred.
5. Thousand (a.) Hence, consisting of a great number indefinitely.