A Defined meaning for this article (add) needs attention because:
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This English one is a mess. Please clean this up: To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, enlarge the magnitude, or so as to form into one aggregate; to sum up; to put together mentally, as, to add numbers; to add up a column. Siebrand 10:35, 11 October 2006 (CEST)