sneak away vs sneak out

sneak away and sneak out both are verbs.

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

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

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

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