Thesaurus.com
Dictionary.com
Definitions

differentiate

[dif-uh-ren-shee-eyt] / ˌdɪf əˈrɛn ʃiˌeɪt /
VERB
make a distinction
Synonyms
STRONGEST
comprehend discern discriminate extricate separate
STRONG
characterize contrast demarcate individualize individuate know mark redline sever severalize
WEAK
antithesize discrepate know what's what mark off set apart set off split hairs tell apart
Antonyms
STRONGEST
misinterpret mistake misunderstand
WEAK
allow associate confuse connect group leave link mix up
VERB
change; make different
Synonyms
STRONGEST
adapt alter diversify modify transform vary
STRONG
assort convert mismatch mismate variegate
Antonyms
STRONGEST
leave alone preserve remain stagnate
WEAK
allow associate confuse connect group leave link mix up

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.