1. A French penny. See Sou.

2. The fifth note of Guido's gamut.

3. The sun; gold.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• somw,
• solil,
• smole,
• isel,
• sof,
• smoll,
• solce,
• soler,
• ssl,
• sal,
• spoli,
• hol,
• shole,
• scol,
• lol,
• soold,
• soilt,
• isil,
• socal,
• solen

• soul,
• sowell,
• solley,
• Soila,
• solo,
• solly,
• Sola,
• sole,
• soil,
• solea,
• soule.

The adverb form of the word "sol" is "solely".

The adjective form of the word "sol" is "solar".