バックドア

noun

back door; tailgate

General term for a rear door of a building or vehicle; also used for the tailgate of a station wagon or SUV.

• その店みせのバックドアから入はいってください。

  Please enter through the back door of the shop.

• 車くるまのバックドアを開あけて荷に物もつを積つんだ。

  I opened the tailgate and loaded the luggage.

noun

backdoor (computing)

In computing, a hidden method of bypassing normal authentication or encryption in a system.

• ハッカーがシステムにバックドアを仕し掛かけた。

  The hacker installed a backdoor in the system.

noun

backdoor pitch (baseball)

In baseball, a pitch that appears to be outside the strike zone but catches the edge of the plate, often used for a strike.

• ピッチャーはバックドアのスライダーで三さん振しんを取とった。

  The pitcher struck the batter out with a backdoor slider.