Cases of word usage

1) a skin infection (common among young people) in which there are spots on the face and neck (acne)

2) the name of God among Muslims (Allah)

3) having two wives or husbands living (a crime among Christians) (bigamy)

4) the usual and generally accepted behaviour among most people (custom)

5) dead skin in a small pieces among the hair of the scalp (dandruff)

6) (of a disease) often found in a country or area, or among a particular group of people (endemic)

7) the rules for formal behaviour among people or a profession (etiquette)

8) an opportunity to do, try, something, especially in one's correct order among others (go)

9) to place (something) between or among others (intersperse)

10) a group of people sent abroad to perform a special task; a place where missionaries work or where charitable or medical work is carried on among poor people (mission)