To add is to put something together with something else so that the total increases. In math, it means combining numbers to find their sum.
From Latin 'addere', meaning 'to give to' or 'put near', from 'ad-' (to) + 'dare' (to give). It originally meant simply to attach or join something extra.
Add is the most basic growth operation—more of anything, not just numbers. Every time you add a detail to a story or a skill to your life, you’re doing a mental version of 2 + 2.
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