| A | B |
| extracurricular | activities carried on outside of study in school |
| extraneous | coming from without; foreign |
| extravagant | given to lavish/imprudent expenditure |
| intramural | within the bounds of an institution (especially a school) |
| intrastate | within the boundaries of a state |
| intravenous | within a vein/veins |
| contrabond | goods prohibited by law from being imported/exported |
| contravene | to act or be counter to; violate, infringe |
| controversy | a dispute between sides with opposing views |
| intercede | to plead on another's behalf |
| interlude | an intervening episode, feature, or period of time |
| intermediary | one who acts as a mediator |
| intermission | a respite or recess |
| intersect | to cut across or through |
| intervene | to occur as an unplanned occurence |
| extra | outside |
| intra | within |
| contra, contro, counter | against |
| inter | between |
| bene | good |
| mal, male | bad |
| de | down |
| se | apart |
| dis | opposite of |