"an attempt to refine the existent machinery to make it more efficient"
"much of the beluga caviar existing in the world is found in the Soviet Union and Iran"

"real objects"
"real people; not ghosts"
"a film based on real life"
"a real illness"
"real humility"
"Life is real! Life is earnest!"

"the predicted temperature and the actual temperature were markedly different"
"actual and imagined conditions"