look back

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longboat, longbow, longevity, longhand, longing, longitude, longitudinal, longitudinally, longshoreman, longstop, longways, loo, loofah (also esp US luffa), look, look after, look ahead, look ahead to, look around, look at, look at sth, look back (on sth), look black, look down on, look down on sb/sth, look for, look for sth, look forward to, look forward to sth/doing sth, look in, look in (on sb/at...), look in the eye, look into, look into sth, look into the future, look like, look on, look one's best, look out, look out of, look over,