How do you spell Differ

Available Definitions:
1)  v. i. - To be or stand apart; to disagree; to be unlike; to be distinguished; -- with from.
2)  v. i. - To be of unlike or opposite opinion; to disagree in sentiment; -- often with from or with.
3)  v. i. - To have a difference, cause of variance, or quarrel; to dispute; to contend.
4)  v. t. - To cause to be different or unlike; to set at variance.