- staphylococci
- shigella
- staph
- streptococcus faecalis
- streptococcus mitis
- streptococcus lactis
- streptococcus agalactiae
- sugar daddy
- subclass euascomycetes
- spirochaetales
- SEB
- staphylococcal enterotoxin B
- soundable
- sonchus oleraceus
- seaborg
- sou'_east
- si unit
- systeme international d'unites
- si system
- scd
- silicious
- silicon bronze
- subgroup
- syllabify
- syllabicate
- section header
- section name
- spark gap
- stamping machine
- supporting fire
- scheduled fire
- suppressive fire
- searching fire
- stamp album
- saturation bombing
- shellproof
- stockhorn
- single_seeded
- sobersides
- sweetheart!
- sheikha
- signora
- starer
- streetwalk
- street_walk
- shop girl
- soubrette
- sex kitten
- sex bomb
- sexpot