rugir bedeutet auf Englisch

roar [roared, roaring, roars]▼(to make loud, deep cry of emotion)
verb
[UK: rɔː(r)] [US: ˈrɔːr]The lion roars. = El león ruge.

rumble [rumbled, rumbling, rumbles]▼(to make a low pitched noise)
verb
[UK: ˈrʌm.bl̩] [US: ˈrʌm.bl̩]