Verb
1. utter obscenities or profanities;
"The drunken men were cursing loudly in the street"2. to declare or affirm solemnly and formally as true;
"Before God I swear I am innocent"3. promise solemnly; take an oath
4. make a deposition; declare under oath
5. have confidence or faith in;
"We can trust in God""Rely on your friends""bank on your good education""I swear by my grandmother's recipes"