| purchaser | (noun) a person who buys | Synonyms: buyer, emptor, vendee |
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| purchasing | (noun) the act of buying | Synonyms: buying |
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| pushchair | (noun) a small vehicle with four wheels in which a baby or child is pushed around | Synonyms: baby buggy, baby carriage, carriage, go-cart, perambulator, pram, pusher, stroller |
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| rechauffe | (noun) warmed leftovers | - |
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| repechage | (noun) a race (especially in rowing) in which runners-up in the eliminating heats compete for a place in the final race | - |
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| repurchase | (noun) the act of purchasing back something previously sold | Synonyms: buyback, redemption |
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| saccharase | (noun) an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose | Synonyms: invertase, sucrase |
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| saccharide | (noun) an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain | Synonyms: carbohydrate, sugar |
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| saccharin | (noun) a crystalline substance 500 times sweeter than sugar; used as a calorie-free sweetener | - |
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| saccharinity | (noun) the excessive sweetness of saccharin | - |
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| saccharose | (noun) a complex carbohydrate found in many plants and used as a sweetening agent | Synonyms: sucrose |
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| seneschal | (noun) the chief steward or butler of a great household | Synonyms: major-domo |
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| servomechanism | (noun) control system that converts a small mechanical motion into one requiring much greater power; may include a negative feedback system | Synonyms: servo, servosystem |
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| spirochaete | (noun) parasitic or free-living bacteria; many pathogenic to humans and other animals | Synonyms: spirochete |
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| steeplechase | (noun) a horse race over an obstructed course | - |
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| (noun) a footrace of usually 3000 meters over a closed track with hurdles and a water jump | - |
| steeplechaser | (noun) a horse trained to run in steeplechases | - |
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| stochasticity | (noun) the quality of lacking any predictable order or plan | Synonyms: haphazardness, noise, randomness |
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| stomachache | (noun) an ache localized in the stomach or abdominal region | Synonyms: bellyache, gastralgia, stomach ache |
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| stonechat | (noun) common European chat with black plumage and a reddish-brown breast | Synonyms: Saxicola torquata |
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| stretchability | (noun) the capacity for being stretched | Synonyms: stretch, stretchiness |
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| supercharger | (noun) compressor that forces increased oxygen into the cylinders of an internal-combustion engine | - |
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| surcharge | (noun) an additional charge (as for items previously omitted or as a penalty for failure to exercise common caution or common skill) | - |
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| tetrasaccharide | (noun) any of a variety of carbohydrates that yield four monosaccharide molecules on complete hydrolysis | - |
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| trenchancy | (noun) keenness and forcefulness of thought or expression or intellect | Synonyms: incisiveness |
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| trisaccharide | (noun) any of a variety of carbohydrates that yield three monosaccharide molecules on complete hydrolysis | - |
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| trochanter | (noun) one of the bony prominences developed near the upper extremity of the femur to which muscles are attached | - |
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| unapproachability | (noun) a disposition to be unapproachable; unfriendly and inaccessible | - |
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| unchangeability | (noun) the quality of being unchangeable; having a marked tendency to remain unchanged | Synonyms: changelessness, unchangeableness, unchangingness |
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| unchangeableness | (noun) the quality of being unchangeable; having a marked tendency to remain unchanged | Synonyms: changelessness, unchangeability, unchangingness |
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| unchangingness | (noun) the quality of being unchangeable; having a marked tendency to remain unchanged | Synonyms: changelessness, unchangeability, unchangeableness |
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| undercharge | (noun) an insufficient charge | - |
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| (noun) a price that is too low | - |
| unexchangeability | (noun) the quality of being incapable of exchange or interchange | - |
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| untouchable | (noun) belongs to lowest social and ritual class in India | Synonyms: Harijan |
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| viscacha | (noun) gregarious burrowing rodent larger than the chinchillas | Synonyms: chinchillon, Lagostomus maximus |
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| whatchamacallit | (noun) something unspecified whose name is either forgotten or not known | Synonyms: dojigger, doodad, doohickey, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallum, whatsis, widget |
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| whatchamacallum | (noun) something unspecified whose name is either forgotten or not known | Synonyms: dojigger, doodad, doohickey, gimmick, gismo, gizmo, gubbins, thingamabob, thingamajig, thingmabob, thingmajig, thingumabob, thingumajig, thingummy, whatchamacallit, whatsis, widget |
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| wheelchair | (noun) a movable chair mounted on large wheels; for invalids or those who cannot walk; frequently propelled by the occupant | - |
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| whinchat | (noun) brown-and-buff European songbird of grassy meadows | Synonyms: Saxicola rubetra |
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