Reid UK/ɹiːd/ US/ˈrid/ fairly common noun 1. Scottish philosopher of common sense who opposed the ideas of David Hume (1710-1796) SynonymsThomas Reid Related words Broader terms philosopher WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.