| SLEECHIER | • SLEECHY adj. slimy with mud. |
| SLEEKENED | • sleekened v. Simple past tense and past participle of sleeken. • SLEEKEN v. to make smooth or glossy, also SLEEK. |
| SLEEKIEST | • sleekiest adj. Superlative form of sleeky: most sleeky. • SLEEKY adj. sleek, smooth. |
| SLEEKINGS | • sleekings n. Plural of sleeking. • SLEEKING n. the act of making smooth. |
| SLEEKNESS | • sleekness n. The quality of being sleek. • SLEEKNESS n. the state of being sleek. |
| SLEEPAWAY | • sleepaway adj. (Attributive) Of a camp or event in which participants sleep away from home. • sleepaway n. A camp or event in which participants sleep away from home. • SLEEPAWAY adj. relating to a camp for teenagers. |
| SLEEPIEST | • sleepiest adj. Superlative form of sleepy: most sleepy. • SLEEPY adj. inclined to sleep. |
| SLEEPINGS | • sleepings n. Plural of sleeping. • SLEEPING n. the act of one who sleeps. |
| SLEEPLESS | • sleepless adj. Characterized by an absence of sleep. • SLEEPLESS adj. without sleep. |
| SLEEPLIKE | • sleeplike adj. Resembling or characteristic of sleep. • SLEEPLIKE adj. like sleep. |
| SLEEPOUTS | • sleepouts n. Plural of sleepout. • SLEEPOUT n. part of a veranda partitioned off for sleeping. |
| SLEEPOVER | • sleepover n. The act of spending the night as a guest in another’s house, especially when the participants are children. • sleepover n. An overnight guest. • sleep␣over v. To spend the night as a guest in someone’s home. |
| SLEEPSUIT | • sleepsuit n. A warm one-piece garment worn while sleeping. • SLEEPSUIT n. a baby's all-in-one garment for sleeping in. |
| SLEEPWALK | • sleepwalk v. (Intransitive) To walk and/or perform other actions while sleeping; to somnambulate. • SLEEPWALK v. to walk in one's sleep. |
| SLEEPWEAR | • sleepwear n. Garments designed to be worn in bed; nightclothes. • SLEEPWEAR n. clothes for sleeping in. |
| SLEETIEST | • sleetiest adj. Superlative form of sleety: most sleety. • SLEETY adj. resembling sleet. |
| SLEEVEENS | • sleeveens n. Plural of sleeveen. • SLEEVEEN n. (Irish) a crafty, smooth-talking person. |
| SLEEVELET | • sleevelet n. A detachable fabric cover to protect the forearm or the lower sleeve of a garment. • SLEEVELET n. a small sleeve. |
| SLEEVINGS | • sleevings n. Plural of sleeving. • SLEEVING n. a tubular covering for a cylindrical object, esp. one of insulating material for an electric cable. |
| SLEEZIEST | • sleeziest adj. Superlative form of sleezy: most sleezy. • SLEEZY adj. sordid, also SLEAZY. |