A tautonym is a taxonomic designation, like "Gorilla gorilla", in which these 2 classifications are the same
[DOC] [TLE] -onym, -onymy, -onymic, -onymically, -onymous ... - Word Information [PAR] Meaning the same, or almost the same, as another word in the same ... Having 
an implication similar to the idea expressed by another word: If one person ...