eyebrow Syllabification: (eye·brow)Pronunciation: /ˈīˌbrou/Translate eyebrow | into French | into German | into Italian | into Spanish Definition of eyebrow noun the strip of hair growing on the ridge above a person’s eye socket. Phrases raise one's eyebrows (or an eyebrow) show surprise, disbelief, or mild disapproval. eyebrow in other Oxford dictionaries Definition of eyebrow in the British & World English dictionary