swear
//swɛr//
Verb
swearInfinitive
swearPresent tense
sworePast tense
swornPast participle
swearingPresent participle
swearsThird-person singular
1
to make a solemn promise or statement, often invoking a deity or sacred object as witness
I swear to tell the truth in court.
2
to use offensive or vulgar language; to curse
He swore loudly when he hit his thumb with the hammer.
3
to take an oath, especially in a legal or official context
Witnesses must swear to tell the truth in court.
4
to declare or affirm something with great confidence or certainty
I swear I saw him at the store yesterday.