noun🔗ShareAn especially close and trusted friend.""I told my bf everything about my problems with my math class." "personhumanfamilycharactercommunicationChat with AIVocabulary GamePractice Reading
noun🔗ShareAn object or concept considered very useful or helpful."For a student struggling with math, a reliable calculator is a real bf. "utilityaidthingassetvalueChat with AIVocabulary GamePractice Reading
noun🔗ShareA font that is dark, having a high ratio of ink to white space, written or drawn with thick strong lines."The boldface (bf) in the textbook helped the students quickly find the key definitions. "typewritingstylecommunicationChat with AIVocabulary GamePractice Reading
noun🔗ShareA male partner in an unmarried romantic relationship.""Sarah's bf is helping her study for her math test." "familypersonhumanChat with AIVocabulary GamePractice Reading
noun🔗ShareA male friend."Maria introduced her friend Tom, explaining, "He's just a bf from my English class." "personhumanfamilycommunicationChat with AIVocabulary GamePractice Reading
