| A | B |
|---|
| re- | back, again |
| sub- | under, below |
| aqu/aqua | water |
| mar | sea |
| pug/pugn | fight |
| -acious | having the quality of |
| -ant | one who, that which; state, quality |
| -arium | place where |
| -eous | like, having the quality of |
| (t)-ic | like, related to |
| -ine | like, related to |
| (il)-ism | a state of being, a quality or act |
| (il)-ist | one who |
| aquarium | a place where aquatic organisms are kept and exhibited |
| repugnant | distasteful; offensive or revolting |
| marine | of or pertaining to the sea |
| pugilist | one who fights as a profession; boxer |
| submarine | being, living, or used under the sea |
| aquatic | related to the animals and plants that live in or near water |
| aquamarine | blue-green in color, like sea water |
| pugnacious | having a quarrelsome or aggressive nature |
| pugilism | the act of boxing |
| aqueous | like, or having the quality of water; watery |
| counter- | against, opposite |
| in- | in, into; not |
| inter- | between, among |
| act | to do, to drive |
| aud | hear |
| (i)-ence | state, quality, act |
| -ible | able to be |
| -ion | an action or process; state, quality, act |
| inaudible | unable to be heard |
| counteract | to act directly against; to prevent from affecting |
| reaction | a response |
| interaction | communication between two or more people or things |
| audience | a group of listeners or spectators |
| audible | able to be heard |
| react | to act in return or reciprocally |
| counteraction | the act of going directly against |
| interact | to talk or do things with others |
| inaction | the state of not doing something that should be done; idleness |
