from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A living arrangement that combines private living quarters with common dining and activity areas in a community whose residents share in tasks such as childcare.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Housing in which the residents' private space is supplemented by communal facilities such as a shared kitchen and/or dining room.
co- + housing (Wiktionary)