commerce >> /ˈkɑmərs/
Definition: [noun] The activity of buying and selling, especially on a large scale.
Example: the possible increase of commerce by a great railroad
Definition: [noun] Social dealings between people.
Example: outside the normal commerce of civilized life
Definition: [noun] Sexual intercourse.
Example: In that city at that time it was the custom that any woman who had commerce with any man not her husband would be taken as an adulteress and die for it, unless she was a woman of the streets.