late 14c., "one who handles" anything, agent noun from handle (v.). Specific sense of "one engaged in trade" is from 1690s; that of "prizefighter's assistant" (1916) was earlier used in reference to dogfights and cockfights (1825).
例文
1. A good handler can lessen faults.
良い Handler はミスを減らすことができます。
2.The sword- handler took the cape,looking up at Brett.
従者がマントを受け取り、ブレットを見上げながら。
3.The exception handler chosen is said to catch the exception.
例外ハンドラの選択処理する例外オブジェクトを異常捕捉.
4.Designer verbs associate a menu item with an event handler .
デザイナ述語により、メニュー項目がイベントハンドラに関連付けられます。
5.In some cases you can dissociate a handler from an event.