Wordnet 3.0
NOUN (1)
1.
a partnership in which employees get a share of the profits in addition to their wages;
The Collaborative International Dictionary of English v.0.48:
Copartnership \Co*part"ner*ship\, n.
1. The state of being a copartner or of having a joint
interest in any matter.
[1913 Webster]
2. A partnership or firm; as, A. and B. have this day formed
a copartnership.
[1913 Webster]
WordNet (r) 3.0 (2006):
copartnership
n 1: a partnership in which employees get a share of the profits
in addition to their wages