Air current and Tailwind

Air current noun - Air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure.

Tailwind and air current are semantically related. In some cases you can replace term "Tailwind" with "Air current", this terms are similar.

Tailwind noun - Wind blowing in the same direction as the path of a ship or aircraft.

Air current and tailwind are semantically related. Sometimes you can use "Air current" instead a noun "Tailwind".