swear
verb.
utter obscenities or profanities
The drunken men were cursing loudly in the street
verb.
to declare or affirm solemnly and formally as true
Before God I swear I am innocent
verb.
promise solemnly; take an oath
verb.
make a deposition; declare under oath
Synonym: depone, depose
verb.
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