infern Noun, n, infern ▼ ▶ hell (place where the souls of dead sinners are to be tortured eternally) Synonyms: iad, gheenă, tartar, hades, orc (figurative) hell, inferno (agonizing situation) Appox. usage (any sense): 6.26 per million words Appox. usage (any sense): 6.26 per million words