from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To live together in a sexual relationship, especially when not legally married.
- intransitive v. To coexist, as animals of different species.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To reside with another as if married or as a married couple.
- v. To coexist in common environs with.
- v. To engage in sexual intercourse; see coition.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To inhabit or reside in company, or in the same place or country.
- intransitive v. To dwell or live together as husband and wife.
from The Century Dictionary and Cyclopedia
- To dwell together; inhabit or reside in company or in the same place or country.
- Specifically To dwell or live together as husband and wife: often with reference to persons not legally married, and usually, but not always, implying sexual intercourse.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. share living quarters; usually said of people who are not married and live together as a couple
Late Latin cohabitāre : Latin co-, co- + Latin habitāre, to dwell; see inhabit.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin cohabitō; co- + habitō ("I dwell, I live in"). (Wiktionary)