More often I’m hearing incorrect corporate and private usages of the term ‘couture’, and it’s driving me bananas.  This is the dictionary definition of couture:

cou·ture  (k-tr, -tür)

n. 1. The business of designing, making, and selling highly fashionable, custom-made clothing.

2. Dressmakers and fashion designers considered as a group.

3. The high-fashion clothing created by designers.

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[French, sewing, from Old French cousture, from Vulgar Latin *cnstra, from Latin cnsuere, cnst-, to sew together : com-, com- + suere, to sew; see sy- in Indo-European roots.]