Volcanic rhymes with:
subvolcanic, subvolcanic, subvolcanic, mechanic, subvolcanic, telemecanique, annick, banick, banik, bannick, botanic, brannick, chovanec, danek, franek, galvanic, ganic, germanic, hispanic, hovanec, inorganic, janick, janicke, janik, koranic, magellanic, manic, manik, mazanec, mechanic, messianic, oceanic, organic, panek, panic, panik, romanik, satanic, stanek, stefanic, stefanik, subvolcanic, szczepanik, telemecanique, titanic, transoceanic, tympanic, urbanik, yanick, yanik, yannick
Volcanic sounds like:
villagomez, volcano's, volcanoes, volcanos, volkswagen's, volkswagens, vulcan's, vulcans