Cases of word usage

1) a strange or unusual event, especially an exciting for Dangerous Journey or activity (adventure)

2) unusual behaviour or activity e.g. of a child or clown (antics)

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

4) (an organized chart with) a pattern or mental, emotional or physical activity affecting each person's (way of) life (biorhythm)

5) something that encourages a person, activity etc (booster)

6) a period of exercise, work or other activity (bout)

7) the activity of buying and selling as a way of earning money (business)

8) a person standing near but not taking part in an event or activity (bystander)

9) a decrease in economic activity by reducing the money supply (deflation)

10) in a state of inactivity but awaiting development or activity (dormant)