| Term | Definition |
| slander | to spread harmful lies that hurt someone's reputation |
| slothful | lazy, indolent |
| Spartan | very disciplines, simple, austere, and frugal |
| spectrum | the range of color in the rainbow, and beyond |
| sporadic | occasional, intermittent, happening at irregular intervals or in scattered instances |
| squalid | filthy, disgusting |
| statute | a law |
| steadfast | firm in purpose, unwavering |
| stem | the main stalk or a plant of flower |
| stern | firm, strict harsh, severe |
| stupefy | to stun, to amaze; to put into a numbed state or a stupor |
| sublime | awe-inspiring, lofty, wonderful |
| sublimate | to change something low into something high; especially in psychology, to change sexual energy into something more refined |
| subsequent | coming later, coming next |
| suffrage | to right to vote |
| sullen | angry but silent, gloomy |
| tactic | a plan or procedure to accompany something |
| tactless | lacking tact, politeness or diplomacy; being too blunt or straightforwad about a delicate manner |
| tenant | a person who rents or occupies a house, apartment, office, etc. |
| terminology | terms or words which are special to a certain discipline or subject |
| theology | the study of God or of diving things; a particular system of beliefs concerning God or the divine. |
| timorous | fearful |
| treatise | a long, detailed and formal writing about the principles of a subject |
| trepidation | fear or alarm |
| untenable | indefensible, incapable of being defender, especially of an argument or thesis |
| uproar | a state of violent and noisy disturbance; turmoil |
| venom | the poison or toxin produced by an animal |
| vent | an opening to allow air to flow into or out of a room |
| veto | to reject or cancel a proposed law (done by a governor or a president) |
| wane | to decrease or declining in strength, intensity, importance, etc |