seethe

Verb

• boil vigorously
  • The liquid was seething
    
  • The water rolled
    

• foam as if boiling
  • a seething liquid
    

• be in an agitated emotional state
  • The customer was seething with anger
    

• be noisy with activity
  • This office is buzzing with activity
    

Related words

• Synonyms: 
  roll , boil , hum , buzz