"seethes" in the verb sense
1. hum, buzz, seethe
be noisy with activity
"This office is buzzing with activity"
2. seethe, boil
be in an agitated emotional state
"The customer was seething with anger"
3. seethe
foam as if boiling
"a seething liquid"
4. seethe, roll
boil vigorously
"The liquid was seething"
"The water rolled"
Source: WordNet® (An amazing lexical database of English)
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