Detect with the senses
Discern
Distinguish
Make out
Pick out
Recognise
Recognize
Spot
Comprehend
Perceive
Discriminate
Resolve
Mark as different
Differentiate
Secern
Secernate
Separate
Severalise
Severalize
Tell
Compare
Identify
Place
Dissociate
Have the distinction
Individualise
Individualize
Know
Know apart
Label
Sex
Single out
Stratify
Contradistinguish
Contrast
Decouple
Demarcate