stand·up or stand-up (stăndŭp′)
1. Standing erect; upright: a standup collar.
2. Taken, done, or used while standing: a standup supper; a standup bar.
3. Of or designating a performer who stands alone on a stage, as in a nightclub, and delivers a comic monologue.
4. Slang Courageous and steadfast: a standup guy.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.