To make a contribution; help in a small way; especially, to pay for a part of something.
To put a chip shot in the hole.
To contribute.
To ante; to put into the pot the amount of chips or money required to continue.
To interrupt a discussion for the purpose of making a comment.
To work or act together, especially for a common purpose or benefit.
To function in harmony, side by side
To allow for mutual unobstructed action
To engage in economic cooperation.