Cases of word usage

1) a piece of land, section of a building etc used for a particular activity (area)

2) a section of a check, receipt etc kept by the sender as a record (counterfoil)

3) a section of a town lived in by underprivileged classes or people who are discriminated against, e.g. because of race or religion (ghetto)

4) a simple song or tune; a tuneful section or theme in music (melody)

5) (a section of) very small photographic film (microfilm)

6) (a number of) people living in a place country etc or a special section of them (population)

7) (a section of) chopped up meat etc in a casing or tube of thin skin (sausage)

8) a section of a road that goes under another road or railway (underpass)