Sky saucer (3)
I believe the answer is:
ufo
(Other definitions for ufo that I've seen before include "Initially, a formal flying saucer" , "(Possibly) alien craft" , "Potential alien craft" , "Mysterious craft" , "Space enigma" .)
I believe the answer is:
ufo
(Other definitions for ufo that I've seen before include "Initially, a formal flying saucer" , "(Possibly) alien craft" , "Potential alien craft" , "Mysterious craft" , "Space enigma" .)