To assemble; to congregate.
To achieve orgasm at the same time.
To meet.
To harmonize socially; to come to an amicable agreement; to ally or band together.
To arrive at a destination with someone after having travelled there with each other.
To be separated in quantity.
Not to have the same traits or characteristics; to be unalike or distinct.
To have diverging opinions, disagree.
A program that diffs, a diff.