Encyclopedias, Almanacs, Transcripts, and Maps
- sphere of influence
- Spice Islands
- spicebush
- spider-flower
- spiderhunter
- spiderwort
- Spieghel, Hendrick Laurenszoon
- Spielberg
- Spielhagen, Friedrich
- spin electronics
- spinal puncture
- Spinello di Luca Spinelli
- Spinola, Ambrogio
- Spínola, António Sebastião Ribeiro de
- Spinone Italiano
- spiny anteater
- spiral nebula
- spirits of hartshorn
- spittlebug
- Spitzer, Eliot Laurence