spile vs bung

spile and bung both are nouns.

Word	Noun	Adjective	Verb	Adverb
spile	Yes	No	No	No
bung	Yes	No	Yes	No

As nouns, spile and bung are synonyms defined as:

spile (noun)	bung (noun)
a plug used to close a hole in a barrel or flask	a plug used to close a hole in a barrel or flask
a column of wood or steel or concrete that is driven into the ground to provide support for a structure

spile (verb)	bung (verb)
	close with a cork or stopper
	give a tip or gratuity to in return for a service, beyond the compensation agreed on