remember vs look back

remember and look back both are verbs.

Word	Noun	Adjective	Verb	Adverb
remember	No	No	Yes	No
look back	No	No	Yes	No

As verbs, look back is a hyponym of remember; that is, look back is a word with a more specific, narrower meaning than remember:

Other hyponyms of remember include reminisce, retrospect, review.

remember (verb)	look back (verb)
recall knowledge from memory; have a recollection	look back upon (a period of time, sequence of events); remember
keep in mind for attention or consideration	look towards one's back
recapture the past; indulge in memories
exercise, or have the power of, memory
call to remembrance; keep alive the memory of someone or something, as in a ceremony
mention as by way of greeting or to indicate friendship
mention favorably, as in prayer
show appreciation to