1. Pertaining to the sun; proceeding from the sun; measured by the progress of the sun. Solar flowers, flowers that open and shut at certain determinate hours. Solar system, the group of celestial bodies comprehending the planets and comets which revolve round the sun. Solar spots, spots of various sizes on the disk of the sun. Solar microscope, a microscope in which the object is illuminated by the concentrated light of the sun.

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

• simlar,
• solil,
• solas,
• simolar,
• solad,
• spoler,
• soccar,
• sclear,
• soler,
• moular,
• sulfar,
• sellar,
• selaer,
• socer,
• salaru,
• sclae,
• colar,
• selary,
• sloar,
• stoar

• Soler,
• soilure,
• Soluri,
• soller,
• sholar,
• solari,
• Souliere,
• solorio.

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

The plural form of the word "solar" is "solars"

The singular form of the word "solar" remains the same, "solar".