- 1
To take an oath, to promise intensely, solemnly, and/or with legally binding effect.ambitransitive
- The knight swore not to return to the palace until he had found the treasure.
- 2
To take an oath that an assertion is true.transitive
- The witness swore that the person she had seen running out of the bank was a foot shorter than the accused.
- 3
To promise intensely that something is true; to strongly assert.transitive
- I swear I don't know what you're talking about.
- My little brother is such a pest, I swear.
- 4
To administer an oath to (a person).transitive
- Let the witness be sworn.
- 5
To use offensive, profane, or obscene language.ambitransitive
- An Australian was once appointed on contract, but he swore too much.
syn. swear · blaspheme · curse · curse like a pagan · curse like a trooper · curse like a sailor · cuss · eff and blind · eff and jeff · execrate · imprecate · swear like a cutter
ant. mind one's language