"swears" in the verb sense
1. curse, cuss, blaspheme, swear, imprecate
utter obscenities or profanities
"The drunken men were cursing loudly in the street"
2. affirm, verify, assert, avow, aver, swan, swear
to declare or affirm solemnly and formally as true
"Before God I swear I am innocent"
promise solemnly take an oath
4. swear, depose, depone
make a deposition declare under oath
5. count, bet, depend, swear, rely, bank, look, calculate, reckon
have faith or confidence in
"you can count on me to help you any time"
"Look to your friends for support"
"You can bet on that!"
"Depend on your family in times of crisis"
Source: WordNet® (An amazing lexical database of English)
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