sneak out vs sneak away

sneak out and sneak away both are verbs.

Word	Noun	Adjective	Verb	Adverb
sneak out	No	No	Yes	No
sneak away	No	No	Yes	No

As verbs, sneak out and sneak away are synonyms defined as:

Other synonyms of sneak out include slip away, slip out, sneak off, steal away.

sneak out (verb)	sneak away (verb)
leave furtively and stealthily	leave furtively and stealthily