Definition of swear by phrasal verb from the Oxford Advanced Learner's Dictionary


swear by

 phrasal verb
phrasal verb
jump to other results
Phrasal Verbs

    swear by somebody


    swear by something

    jump to other results
  1. 1to name somebody/something to show that you are making a serious promise I swear by almighty God that I will tell the truth.
  2. 2(not used in the progressive tenses) to be certain that something is good or useful She swears by meditation as a way of relieving stress.
See the Oxford Advanced American Dictionary entry: swear by