ＯＴＡ

noun

over-the-air; OTA

Computing term for wireless data transmission, especially software updates delivered via mobile networks.

• スマートフォンのＯＴＡアップデートが配はい信しんされた。

  An over-the-air update for the smartphone was released.

noun

online travel agent; OTA

Refers to web-based travel booking services like Expedia or Booking.com.

• 旅りょ行こうの予よ約やくはＯＴＡを使つかうと便べん利りだ。

  It's convenient to use an online travel agent for booking trips.