| A | B |
| geology | the study of the history of the earth, especially as recorded in rocks |
| psychology | the study of mental processes and behavior |
| ecology | the study of the relationship between organisms and their environment |
| entomology | the study of insects |
| etymology | the study of the origin and development of words |
| soliloquy | a speaking alone to oneself, as in a drama; a monologue |
| eloquent | speaking out; fluent; persuasive |
| colloquial | like the language used when people speak together informally; informal or conversational |
| grandiloquent | marked by a lofty, extravagantly colorful style |
| ventriloquist | one who speaks from the stomach; one who speaks so that the sounds seem to come from somewhere other than the speaker's mouth |