| Word | Definitions | Synonyms |
|---|---|---|
| topic | (noun) some situation or event that is thought about | Synonyms: issue, matter, subject |
| (noun) the subject matter of a conversation or discussion | Synonyms: subject, theme | |
| tropic | (noun) either of two parallels of latitude about 23.5 degrees to the north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the Torrid Zone or tropics | - |