- succumb: To cease to resist.
- sufferance: Toleration.
- sufficiency: An ample or adequate supply.
- suffrage: The right or privilege of voting.
- suffuse: To cover or fill the surface of.
- suggestible: That can be suggested.
- suggestive: Stimulating to thought or reflection.
- summary: An abstract.
- sumptuous: Rich and costly.
- superabundance: An excessive amount.
- superadd: To add in addition to what has been added.
- superannuate: To become deteriorated or incapacitated by long service.
- superb: Sumptuously elegant.
- supercilious: Exhibiting haughty and careless contempt.
- superficial: Knowing and understanding only the ordinary and the obvious.
- superfluity: That part of anything that is in excess of what is needed.
- superfluous: Being more than is needed.
- superheat: To heat to excess.
- superintend: To have the charge and direction of, especially of some work or movement.
- superintendence: Direction and management.
- superintendent: One who has the charge and direction of, especially of some work or movement.
- superlative: That which is of the highest possible excellence or eminence.
- supernatural: Caused miraculously or by the immediate exercise of divine power.
- supernumerary: Superfluous.
- supersede: To displace.
- supine: Lying on the back.
- supplant: To take the place of.
- supple: Easily bent.
- supplementary: Being an addition to.
- supplicant: One who asks humbly and earnestly.
- supplicate: To beg.
- supposition: Conjecture.
- suppress: To prevent from being disclosed or punished.
- suppressible: Capable of being suppressed.
- suppression: A forcible putting or keeping down.
- supramundane: Supernatural.
- surcharge: An additional amount charged.
- surety: Security for payment or performance.
- surfeit: To feed to fullness or to satiety.
- surmise: To conjecture.
- surmount: To overcome by force of will.
- surreptitious: Clandestine.
- surrogate: One who or that which is substituted for or appointed to act in place of another.
- surround: To encircle.
- surveyor: A land-measurer.
- susceptibility: A specific capability of feeling or emotion.
- susceptible: Easily under a specified power or influence.
- suspense: Uncertainty.
- suspension: A hanging from a support.
- suspicious: Inclined to doubt or mistrust.