mull over vs meditate

mull over and meditate both are verbs.

Word	Noun	Adjective	Verb	Adverb
mull over	No	No	Yes	No
meditate	No	No	Yes	No

As verbs, mull over and meditate are synonyms defined as:

Other synonyms of mull over include chew over, contemplate, excogitate, mull, muse, ponder, reflect, ruminate, speculate, think over.

mull over (verb)	meditate (verb)
reflect deeply on a subject	reflect deeply on a subject
	think intently and at length, as for spiritual purposes