As nouns the difference between bunny and butterfly
is that
bunny is a culvert or short covered drain connecting two ditches or
bunny can be a swelling from a blow; a bump or
bunny can be a rabbit, especially a juvenile while
butterfly is a flying insect of the order
lepidoptera , distinguished from moths by their diurnal activity and generally brighter colouring.
As an adjective bunny
is (not comparable) in skiing, easy or unchallenging or
bunny can be resembling a bun.
As a verb butterfly is
to cut almost entirely in half and spread the halves apart, in a shape suggesting the wings of a butterfly.