reverberation

Noun

• a remote or indirect consequence of some action
  • his declaration had unforeseen repercussions
    
  • reverberations of the market crash were felt years later
    

• the repetition of a sound resulting from reflection of the sound waves
  • she could hear echoes of her own footsteps
    

Related words

• Synonyms: 
  repercussion , echo , sound reflection , replication