Cases of word usage

1) a machine with two wheels moved by using pedals (bicycle)

2) a small spool for threats, wire etc in a machine (bobbin)

3) a failure (of an engine, machine etc) (breakdown)

4) a small machine that calculates automatically (calculator)

5) a kind of machine that reaps and threshes grain (grain harvester)

6) a strange-looking apparatus or machine (contraption)

7) to cause (one machine part) to become detached (disengage)

8) to take (a machine etc) to pieces (dismantle)

9) a machine used for changing steam-power, water-power etc into electrical energy (dynamo)

10) any kind of machine that changes energy (from petrol, electricity etc) into motion (engine)