unity >> ˈjuːnɪti
Definition: [noun] the state of being united or joined as a whole.
Example: European unity
Definition: [noun] the number one.
Example: the slope of each dotted line is less than unity
Definition: [noun] each of the three dramatic principles requiring limitation of the supposed time of a drama to that occupied in acting it or to a single day ( unity of time ), use of one scene throughout ( unity of place ), and concentration on the development of a single plot ( unity of action ).