Open English Wordnet
Nouns
(n)roarthe sound made by a lion Verbs
(v)roar, howlmake a loud noise, as of wind, water, or vehicles“The wind was howling in the trees”,
“The water roared down the chute” (v)thunder, roarutter words loudly and forcefully“‘Get out of here,’ he roared” (v)roaract or proceed in a riotous, turbulent, or disorderly way“desperadoes from the hills regularly roared in to take over the town” (R.A.Billington) (v)bellow, roarmake a loud noise, as of animal“The bull bellowed” (v)roar, howllaugh unrestrainedly and heartily