"Franklin Newton" wrote
I thought it was "Visual Omni Range", meaning multi-directional and
you got to see the display as opposed to the aural radio ranges.

Ah-ha...somebody else as old as I am. :-) That's how I first
heard it way back in the early fifties. By the late fifties,
we had VORs in our Navy aircraft, but the emphasis on my final
instrument check-ride was still on the "aural" A-N Range for
both enroute navigation and approaches. How pleasant to get to
the first fleet squadron to find that it was all VOR/ADF/GCA
flying.

Bob Moore