| A | B |
| somnambulist (SOMN sleep + AMBUL walk) | a sleepwalker |
| somniloquy (SOMN sleep + LOQU talk/speech) | talking in one's sleep |
| somnulent (SOMN sleep + LENT full of) | boring, dull; causing one to fall asleep |
| sonorous (SON sound + OUS full of) | full-sounding; richly voiced |
| sordid | dirty; filthy; morally debased or ignoble |
| specious (SPEC look) | false or fake (as in a specious argument); note that there is the look or appearance or something, and then what it truly is on the inside. Specious implies an outward appearance that inwardly is not true |
| spurious | false; not genuine, authentic, or true |
| subliminal (SUB under or below) | existing in the mind but beneath the threshold of consciousness. |
| subordinate (SUB under/below) | lower; under the orders of something superior |
| subvert (SUB under or below + VERT turn) | to overthrow; to cause the downfall |
| supercilious (SUPER above/over + CILIA brow) | scornful arrogance (when we look down at others who we find inferior, we often raise our eyebrows) |
| surreptitious | secret or unauthorized; acting in a stealthy or secretive manner |
| surrogate (SUR over or above + ROGATE ask or question) | one who or that which is substituted for or appointed to act in place of another. |
| taciturn | disinclined to conversation; silent in expression; tending to be silent |
| tantamount | equivalent in value, effect, or import; "the same as" |
| teem | to be so full as to be overflowing. |
| temerity | recklessness; foolhardy disregard of danger |
| temporize (TEMPOR time + IZE make) | to make time; to delay plans or events |
| terra firma (TERR land + FIRM) | solid ground |
| timorous (think TIMID + -OUS full of) | fearful; lacking courage. |
| torpor | sluggish inactivity; apathy; dormancy (as of a hibernating animal) |
| trenchant | forceful; effective; energetic; incisive or keen (as in language or a person) |
| trepidation | fear; a state of terror or alarm |
| trichotomy (TRICHO in three parts + TOMy cut) | three-part division |
| truculent | eager; quick to fight or argue |