harborto keep a thought or feeling secretly in one's mind over time (not just a port)She continued to harbor doubts about the project long after the team had committed to it.NoteShe continued to harbor doubts about the project long after the team had committed to it.Elon.io is an online learning platformWe have an entire course teaching GRE Verbal — Essential Vocabulary grammar and vocabulary.Start learning GRE Verbal — Essential Vocabulary now