PILLARS OF HERCULES(noun)Did you mean?Synonyms RhymesDefinitions There is 1 meaning of the phrase Pillars Of Hercules. Pillars Of Hercules - as a noun The two promontories at the eastern end of the strait of gibraltar; according to legend they were formed by hercules Word Variations & RelationsStarts PStarts PIStarts PILStarts PILLEnds SEnds ESEnds LESEnds ULESStarts P & ends SStarts PI & ends SStarts P & ends ESA-Z Proximitiespillaring12pillarist11pillarists12pillarless12pillars9 pillars of hercules pillau8pillaus9pillbox18pillboxes20pilled9