say it: ahk-TAG-uh-nuhl
octagonal is an adjective meaning "of or relating to or shaped like an octagon". It is pronounced /ɑkˈtæɡənəl/ — ahk-TAG-uh-nuhl. It carries one recorded sense.
of or relating to or shaped like an octagon
Definitions, synonyms and semantic relations for octagonal come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. .