mean to (one)
To be of importance, significance, or worth to one. A noun or pronoun can be used between "mean" and "to." It's hard to quantify what this amazing gift means to our community, but suffice to say that it will change many lives for the better. Criticism like that doesn't mean anything to me—I just let it roll off me like water off a duck's back.
mean to (do something)
to intend to do something. Did you mean to do that? No, it was an accident. I didn't mean to.
mean to
Intend to, as in I meant to go running this morning but got up too late, or I'm sorry I broke it-I didn't mean to. This idiom was first recorded in 1560.