1. Containing ten or ten parts
   - ten-fold, denary

1. By ten times as much
   "the population increased tenfold"

See also: multiple

• genus Sinapis
• genus Sinningia
• genus Sinornis
• genus Siren
• genus Sison
• genus Sistrurus
• genus Sisymbrium
• genus Sisyrinchium
• genus Sitophylus
• genus Sitotroga
• genus Sitta
• genus Sium
• genus Sivapithecus
• genus Sloanea
• genus Smilax
• genus Smiledon
• genus Smyrnium
• genus Sobralia
• genus Solandra
• genus Solanopteris
• genus Solanum
• genus Solea
• genus Soleirolia
• genus Solenopsis
• genus Solenostemon