smile, happy face, smiling face

(formal) Female third-person singular pronoun; she, her, girlfriend

(colloquial) a girlfriend (a female partner in a romantic relationship)

(literary) they (about women or girls)

lovable, beloved / cute, adorable

embarrassed, having a guilty conscience: see 顔映し (kawahayushi). / (obsolete) pitiable, pitiful / lovable, adorable, cute

negative form of 可愛い / (figuratively) ingrate, unthankful

(literary) they (about women or girls)

to adore, to be sweet on / (ironically, from the idea of giving special attention to) to persistently bother or annoy someone, to be a noodge to someone

The hiragana syllable ぶ (bu). Its equivalent in katakana is ブ (bu).