WordReference Random House Unabridged Dictionary of American English © 2026
topo-, 
  1. a combining form meaning "place,'' "local,'' used in the formation of compound words:topography; topology.
Also,[esp. before a vowel,] top-.
  • combining form of Greek tópos place, commonplace

Collins Concise English Dictionary © HarperCollins Publishers::
topo-, (before a vowel) top- combining form
  1. indicating place or region: topography, topology, toponym, topotype
Etymology: from Greek topos a place, commonplace
'topo-' also found in these entries (note: many are not synonyms or translations):
top- - atopy - entopic - epitope - top - topic - topical - topographer - topography - topology - topotype

Forum discussions with the word(s) "topo-" in the title:


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