Panel saw - Handsaw with fine teeth.
Pinion - Gear with a small number of teeth designed to mesh with a larger gear.
Plinth - Architectural support or base.
Rasp - Coarse file with sharp, raised, pointed projections.
Sleeper - Railroad crosstie.
Spanner - Wrench
Spirit Lamp - Alcohol lamp; see example on page 188.
Spirit - Alcohol
Strake - Ridge of thick planking on the side of a wooden ship.
Strut - Any part designed to hold things apart or resist compressive stress;