To perceive the difference between things; to discriminate.
To (cause to) go through a process of development called differentiation; to make or become different in form or function.
To recognize a distinction or difference between two things.
To make different; to change, modify.
To calculate the derivative of a function.
To calculate the differential of a function of multiple variables.
To teach a lesson in multiple different ways in order to meet the needs of more or less advanced students.
Something that has been differentiated or stratified.
To look at out of the corner of one's eye, particularly with animosity, or in a judgmental or suspicious manner.
A sidelong look, particularly of animosity, judgment, or suspicion.