The tag alias #51072 airborne -> midair has been approved.

Reason: Both refer to when a character* is in midair, but midair is the more common tag.

* Per the midair wiki, it "does not apply to inanimate objects". While one could argue that airborne should be used for inanimate objects (such as aircrafts), currently only 1 of the 65 instances of the tag is actually used this way (post #1465005).

EDIT: The tag alias airborne -> midair (forum #306411) has been approved by @Millcore.