n. pl. pos·si·bil·i·ties
1. The fact or state of being possible: investigating the possibility of life on other planets.
2. Something that is possible: His promotion now seems a possibility.
3. One that is capable of being chosen or of being made real: She is a strong possibility in the senatorial race. There are several possibilities for dessert.
4. possibilities Potentiality for favorable or interesting results: The idea has great possibilities.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.