swear

verb

1. utter obscenities or profanities

   verb.communication

   Synonyms blaspheme curse cuss imprecate

   Source: WordNet 3.0

2. to declare or affirm solemnly and formally as true

   verb.communication

   Examples

   Before God I swear I am innocent.

   Synonyms affirm assert aver avow swan verify

   Source: WordNet 3.0

3. promise solemnly; take an oath

   verb.communication

   Source: WordNet 3.0

4. make a deposition; declare under oath

   verb.communication

   Synonyms depone depose

   Source: WordNet 3.0

5. have confidence or faith in

   verb.cognition

   Examples

   I swear by my grandmother's recipes.

   Synonyms bank rely trust

   Antonyms distrust mistrust suspect

   Source: WordNet 3.0

6. To affirm or utter a solemn declaration, with an appeal to God for the truth of what is affirmed; to make a promise, threat, or resolve on oath; also, to affirm solemnly by some sacred object, or one regarded as sacred, as the Bible, the Koran, etc.

   verb

   Source: webster1913

7. To utter or affirm with a solemn appeal to God for the truth of the declaration; to make (a promise, threat, or resolve) under oath.

   verb

   Source: webster1913