[*** \mathrm{bravo}^1] |ˈbrävō|

source: [僕は友達が少ないの柏崎星奈がブラボーと羽瀬川小鳩を褒め称えるGIF画像｜無料GIF画像検索 GIFMAGAZINE 672747]

used to express approval when a performer or other person has done something well:

ブラボー, うまいぞ (!演奏［演技］者を称賛するかけ声; 日本人ほど頻繁には用いない)

e.g. people kept on clapping and shouting “bravo!”.

noun (plural bravos)

1. a cry of bravo:

ブラボーの叫び

e.g. bravos rang out.

2. a code word representing the letter B, used in radio communication.

mid 18th century: from French, from Italian, literally ‘bold’ (see brave).

[*** \mathrm{bravo}^2] |ˈbrävō|

noun (plural bravos or bravoes)

a thug or hired assassin.

late 16th century: from Italian, from bravo‘bold (one)’ (see brave).