The Greek that is translated as “see(n) a vision” in English is sometimes translated generically, such as “to see something” (Sranan Tongo, Tae’), “something is made visible” (Western Apache), or “they knew, what he might have seen” (i.e. they knew that something had been seen but not what) (Shipibo-Conibo).
Elsewhere a specification is added, such as “to see a divine sight” (Kannada, Toraja-Sa’dan), “he had seen something supernatural, which had appeared to him” (Tboli) (source for this and all above: Reiling / Swellengrebel), or “something God showed” in Hiligaynon (source: Hiligaynon Back Translation).
See also vision.