a. The light or the direct rays from the sun.
b. The warmth given by the sun's rays.
c. A location or surface on which the sun's rays fall.
a. Radiant cheerfulness; geniality.
b. A source of cheerfulness.
3. Public access or scrutiny: attempts to open the legislative process to more sunshine.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.