| Term | Definition |
| convention | a meeting or assembly of people |
| intervene | to come between |
| adventure | an exciting or dangerous undertaking |
| venture some | daring |
| invent | to come up with a new idea |
| eventually | finally; in the end |
| adventure | coming or arrival |
| convenient | easy to use; near at hand |
| prevention | the act of hindering or keeping from happening |
| revenue | income |
| around | the prefix peri-means |
| under, below | the prefix hypo-means |
| perimeter | the distance around something |
| periphery | the outside edge |
| periscope | an instrument that enables those in a submarine to see above the water |
| period | the time between certain happenings |
| hypodermic | injected under the skin |
| hypothesis | a scientific assumption |
| hypochondriac | a person who worries unnecessarily about his health |
| hypocrisy | pretending to be what one is not |