resound vs roar

To make (sounds), or to speak (words), loudly or reverberatingly. 

Of a place: to reverberate with sound or noise. 

Of a sound, a voice, etc.: to reverberate; to ring. 

Of a person, their reputation, etc.: to be much lauded or mentioned. 

Of a place: to cause (a sound) to reverberate; to echo. 

Especially of a musical instrument: to make a (deep or reverberating) sound; also, to make sounds continuously. 

Of an event: to have a major effect in a certain place or time. 

To echo or repeat (a sound). 

To sound again. 

To praise or spread the fame of (someone or something) with the voice or the sound of musical instruments; to celebrate, to extol; also, to declare (someone) to be a certain thing. 

To cry aloud; to proclaim loudly. 

Of animals (especially a lion), to make a loud deep noise. 

To make a loud noise in breathing, as horses do when they have a certain disease. 

To proceed vigorously. 

To be boisterous; to be disorderly. 

Generally, of inanimate objects etc., to make a loud resounding noise. 

To laugh in a particularly loud manner. 

To make a loud, deep cry, especially from pain, anger, or other strong emotion. 

to cry