Basic Guidelines For English Spellings
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1historical A small drum.
2A circular frame for holding fabric taut while it is being embroidered.
3Architecture
A wall of circular plan, such as one supporting a dome or surrounded by a colonnade.
4usually as modifier A sliding flexible shutter or door on a piece of furniture, made of strips of wood attached to a backing of canvas.
5A projecting part of the wall of a tennis court.
Late 15th century from French tambour ‘drum’; perhaps related to Persian tabīra ‘drum’. Compare with tabor.