- A low-lying place, such as a pit, that receives drainage. (noun)
- A cesspool. (noun)
- A hole at the lowest point of a mine shaft into which water is drained in order to be pumped out. (noun)
- The crankcase or oil reservoir of an internal-combustion engine. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.