sneak off vs steal away

sneak off and steal away both are verbs.

Word	Noun	Adjective	Verb	Adverb
sneak off	No	No	Yes	No
steal away	No	No	Yes	No

As verbs, sneak off and steal away are synonyms defined as:

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

sneak off (verb)	steal away (verb)
leave furtively and stealthily	leave furtively and stealthily