1
general::
Phrase(s): think back (on someone or something)
to remember and think about someone or something. • When I think back on Sally and the good times we had together, I get very sad. • I like to think back on my childhood and try to remember what it was like., Phrase(s): think back (to something)
to remember back to something in the past. • Now, try and think back to the night of January 16. • I can’t think back. My mind is preoccupied with other things.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Recall or reflect on, as in When I think back on my days as a summer camper, I really had a good time, or As he thought back to his father, long dead, tears came to his eyes. [Mid-1900s]
American Heritage Idioms