[brah-voh; for 1, 2, 5 also brah-voh] 
interjection, noun, plural -vos for 2, -vos or -voes for 3, verb, -voed, -vo⋅ing.| 1. | (used in praising a performer). |
| 2. | a shout of “bravo!” |
| 3. | a daring bandit, assassin, or murderer, esp. one hired to steal or murder for another. |
| 4. | a word used in communications to represent the letter B. |
| 5. | to shout “bravo!” |
| bra·vo 1 (brä'vō, brä-vō') interj. Used to express approval, especially of a performance. n. pl. bra·vos A shout or cry of "bravo." v. bra·voed, bra·vo·ing, bra·voes v. tr. To express approval of by shouting "bravo." v. intr. To shout "bravo." [Italian; see brave.] |
| bra·vo 2 (brä'vō) n. pl. bra·voes or bra·vos A villain, especially a hired killer. [Italian, from bravo, wild, excellent; see brave.] |
"It is held by some philologists that as "Bravo!" is an exclamation its form should not change, but remain bravo under all circumstances. Nevertheless "bravo" is usually applied to a male, "brava" to a female artist, and "bravi" to two or more." ["Elson's Music Dictionary," 1905]
voʊ