| Scalar | Scalar (mathematics) | Scalar (physics) |
| Scalar boson | Scalar field | Scaldasole |
| Scale | Scale (anatomy) | Scale (map) |
| Scale (ratio) | Scale factor | Scale model |
| Scale-invariant feature transform | Scalebound | Scaled Composites |
| Scales Mound, Illinois | Scalesia | Scalesia affinis |
| Scalesia aspera | Scalesia atractyloides | Scalesia baurii |
| Scalesia cordata | Scalesia crockeri | Scalesia divisa |
| Scalesia gordilloi | Scalesia helleri | Scalesia incisa |
| Scalesia microcephala | Scalesia pedunculata | Scalesia stewartii |
| Scalesia villosa | Scalp | Scalpel |
| Scaly foot | Scaly leg | Scammon Bay, Alaska |
| Scammon, Kansas | Scandal | Scandal (TV series) |
| Scandentia | Scandia, Kansas | Scandia, Minnesota |
| Scandiceae | Scandinavia (town), Wisconsin | Scandinavian Airlines |
| Scandinavian literature | Scandium | Scandium chloride |
| Scandium fluoride | Scandium nitrate | Scandium oxide |
| Scandium(III) fluoride | Scandium(III) oxide | Scandium(III) sulfide |
| Scandix | Scandix aegyptiaca | Scandix damascena |
| Scandix palaestina | Scania AB | Scanlon, Minnesota |
| Scanning electron microscope | Scanning transmission electron microscopy | Scanning tunneling microscope |
| Scapegoat | Scapegoating | Scaphirhynchus albus |
| Scaphoid bone | Scaphopoda | Scappoose, Oregon |
| Scaptonyx fusicaudus | Scapula | Scapular anastomosis |
| Scar | Scar (Fullmetal Alchemist) | SCARA |
| Scarab (artifact) | Scarabaeidae | Scarabaeus |
| Scarabaeus sacer | Scaramouche | Scarcity |
| Scarecrow | Scarecrow (1973 film) | Scarecrow (DC Comics) |
| Scarf | Scarface (1983 film) | Scarface (1983 movie) |
| Scarface: Money. Power. Respect. | Scarface: The World Is Yours | Scaridae |
| Scariola orientalis | Scariola triquetra | Scarlet (color) |
| Scarlet fever | Scarlet Ortiz | Scarlett (miniseries) |
| Scarlett (TV miniseries) | Scarlett Johansson | Scarpa |
| Scarsdale, New York | Scarus coeruleus | Scarville, Iowa |
| Scary movie | Scary Movie | Scary Movie 4 |
| Scary Movie 5 | Scary or Die | Scat |
| Scathophaga | Scathophaga calida | Scathophaga cineraria |
| Scathophaga stercoraria | Scathophagidae | Scatman Crothers |
| Scatophagidae | Scattered Islands in the Indian Ocean | Scattering |
| Scattering amplitude | Scattering length | Scavenger (chemistry) |
| Scavenger's daughter | Scc | ScCl3 |
| SCE Bend Studio | SCE Japan Studio | SCE San Diego Studio |
| SCE Santa Monica Studio | Scenario | Scenic design |
| Scent of a Woman (1992 film) | Sceptre | ScF3 |
| Schaeffersheim | Schaffhausen | Schaffhouse-près-Seltz |
| Schaffhouse-sur-Zorn | Schafik Handal | Schaghticoke (village), New York |
| Schalkendorf | Schaller, Iowa | Schanginia |
| Schanginia aegyptiaca | Schanginia arbuscula | Schanginia baccata |
| Schanginia baccifera | Schanginia borszczowii | Schanginia hortensis |
| Schanginia linifolia | Schanginia tribracteata | Schanginia trigyna |
| Scharnebeck twin ship lift | Scharrachbergheim-Irmstett | Schatzki ring |
| Schauer | Schaueria | Schaueria azaleiflora |
| Schaueria calicotricha | Schaueria calycotricha | Schaueria lachnostachya |
| Schaueria parviflora | Schaueria populifolia | Schaumburg, Illinois |
| Schœnau | Schœnbourg | Schœnenbourg |
| Schedir | Schedonorus mairei | Schefflera |
| Schefflera alpina | Schefflera arfakensis | Schefflera bojeri |
| Schefflera brassii | Schefflera cuneata | Schefflera digitata |
| Schefflera elegantissima | Schefflera elliptica | Schefflera exaltata |
| Schefflera monophylla | Schefflera monticola | Schefflera palawanensis |
| Schefflera panamensis | Schefflera papuana | Schefflera simplicifolia |
| Schefflera urbaniana | Schefflereae | Scheibe Flugzeugbau |
| Scheibe SF 34 | Scheibe SF 36 | Scheibe SF 40 |
| Scheibe SF-23 Sperling | Scheibe SF-27 | Scheibe Spatz |
| Scheibenhard | Schema (psychology) | Scheme (linguistics) |
| Scheme (programming language) | Schengen Agreement | Schengen Area |
| Scherffelia | Scherffelia angulata | Scherffelia cornuta |
| Scherffelia deformis | Scherffelia dubia | Scherffelia incisa |
| Schering AG | Scherlenheim | Scherrer equation |
| Schertz, Texas | Scherwiller | Schiaparelli |
| Schick test | Schicksalsreise. Bericht und Bekenntnis | Schiebel Camcopter S-100 |
| Schiedam | Schiff base | Schilbe |
| Schilbe angolens | Schilbe angolensis | Schilbe banguelensis |
| Schilbe intermedius | Schilbe laticeps | Schilbe marmoratus |
| Schilbe micropogon | Schilbe moebiusii | Schilbe mystus |
| Schilbe yangambianus | Schilbe zairensis | Schilbeidae |
| Schiller Park, Illinois | Schillersdorf | Schilling test |
| Schiltigheim | Schinderhannes | Schinderhannes bartelsi |
| Schindler's List | Schinopsis | Schinopsis balansae |
| Schinopsis brasiliensis | Schinopsis cornuta | Schinopsis glabra |
| Schinopsis heterophylla | Schinopsis lorentzii | Schinopsis marginata |
| Schinopsis peruviana | Schinopsis quebracho-colorado | Schinus molle |
| Schinus terebinthifolia | Schinus terebinthifolius | Schipol |
| Schirmeck | Schirrhein | Schirrhoffen |
| Schisandra | Schisandra arisanensis | Schisandra bicolor |
| Schisandra chinensis | Schisandra elongata | Schisandra glabra |
| Schisandra glaucescens | Schisandra grandiflora | Schisandra henryi |
| Schisandra incarnata | Schisandra lancifolia | Schisandra longipes |
| Schisandra macrocarpa | Schisandra micrantha | Schisandra neglecta |
| Schisandra parapropinqua | Schisandra perulata | Schisandra plena |
| Schisandra propinqua | Schisandra pubescens | Schisandra pubinervis |
| Schisandra pyrifolium | Schisandra repanda | Schisandra rubriflora |
| Schisandra rubrifolia | Schisandra sphaerandra | Schisandra sphenanthera |
| Schisandra tomentella | Schisandraceae | Schism |
| Schistocyte | Schistosoma | Schistosoma haematobium |
| Schistosoma japonicum | Schistosoma mansoni | Schistosoma mekongi |
| Schistosomiasis | Schizoaffective disorder | Schizont |
| Schizophora | Schizophrenia | Schizophrenia and smoking |
| Schizopyrenida | Schizosaccharomyces | Schizosaccharomyces hominis |
| Schizosaccharomyces pombe | Schizosaccharomycetaceae | Schizosaccharomycetales |
