1. Being an unspecified number or quantity: Some people came into the room. Would you like some sugar?
2. Being a portion or an unspecified number or quantity of a whole or group: He likes some modern sculpture but not all.
3. Being a considerable number or quantity: She has been directing films for some years now.
4. Unknown or unspecified by name: Some man called.
5. Logic. Being part and perhaps all of a class.
6. Informal. Remarkable: She is some skier.

1. An indefinite or unspecified number or portion: We took some of the books to the auction. See Usage Note at every.
2. An indefinite additional quantity: did the assigned work and then some.

1. Approximately; about: Some 40 people attended the rally.
2. Informal. Somewhat: some tired.

[Middle English, from Old English sum, a certain one.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.