diacritical mark diac·ri·ti·calmark uncommon noun 1. a mark added to a letter to indicate a special pronunciation Synonymsdiacritical markdiacritic Related words Broader terms mark Narrower terms accentbrevecedillacircumflexhacekmacrontildeumlaut WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
