Completely or totally; in every way. It can also mean “in total” when adding things up.
From Middle English *altogedere*, a blend of *all* and *together*. It originally emphasized complete unity or entirety.
“Altogether” is literally “all together,” so it bundles the idea of completeness and unity into one word. When you say “That’s altogether different,” you’re saying it’s different in every piece, as a whole package. It’s a subtle word that quietly signals 100% change.
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