look back (onsomeone or something)

look back (at someone or something) & look back (onsomeone or something)

1. Lit. to gaze back and try to get a view of someone or something. •

She looked back at the city and whispered a good-bye to everything she had ever cared for.

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I went away and never looked back.

2. Fig. to think about someone or something in the past. •

When I look back on Frank, I do remember his strange manner, come to think of it.

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When I look back, I am amazed at all I have accomplished.