| A | B | 
| antisocial | opposed to friendly relationships | 
| intravenous | within a vein | 
| antibiotic | substance produced by a living organishm that destroys or weakens harmful microorganisms | 
| intermediate | (v) come in to help settle dispute; (adj.) in the middle | 
| international | between countries | 
| interfere | get in the way of each other; clash | 
| promote | raise in rank or importance | 
| progress | (n) adcance or growth; (v) get better | 
| intramural | carried on by members of the same school | 
| intrastate | within a state | 
| antifreeze | liquid with low freezing point added to a radiator | 
| antidote | medicine which counteracts the effects of poison | 
| antibody | a protein substance produced in the blood that weakens bacteria or poisons | 
| intervene | come between persons or groups to help settle a dispute | 
| intersection | point or place where one thing crosses another | 
| intercept | take or seize on the way from one place to another | 
| prologue | introduction to a novel, poem, or other literary work | 
| profound | very deep | 
| proclaim | make known publicly | 
| antiseptic | substance that prevents the growth of infections causing germs |