1. (

• rumble ,
• rumbling ,
• grumble ,
• grumbling

) a loud low dull continuous noise; "they heard the rumbling of thunder" ;

2. (

• rumble

) a servant's seat (or luggage compartment) in the rear of a carriage ;

3. (

• rumble ,
• gang_fight

) a fight between rival gangs of adolescents ;

1. (

• rumble ,
• grumble

) make a low noise; "rumbling thunder" ;

2. (

• grumble ,
• growl ,
• rumble

) to utter or emit low dull rumbling sounds; "he grumbled a rude response"; "Stones grumbled down the cliff" ;