to tend to meet in a point or line; incline toward each other, as lines that are not parallel.
this is the verb...(used without an object)
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actually it means gather.
Mean can mean you are being rude or in math terms it is adding a set of numbers then dividing by the total amount. ex. If your numbers are 1,2,and 3 add them to get 6 and divide by 3. You get 2.