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I didn't know that redundant carried the connotation of uselessness. Duplication, yes, but not automatically useless...? That's pretty awful, given that you Brit-speakers say that someone who has been what we call laid off has been made redundant.




Well, here's what M-W, a USn dikshunry if I'm not mistaken, offers for "redundant":
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a : exceeding what is necessary or normal : SUPERFLUOUS b : characterized by or containing an excess; specifically : using more words than necessary c : characterized by similarity or repetition *a group of particularly redundant brick buildings* d chiefly British : no longer needed for a job and hence laid off




The definitions above are the ones that I'm familiar with, and all carry more than merely a sense of duplication. They all suggest an element of being unnecessary. Hence the employment sense - "we have 4 cleaners and need only three. One of you is redundant." It's really the same meaning as in the definitions listed before it, afaict.