Topic: MATERIAL, TEXTILES
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fi‧bre British English ; fiber American English

1 [uncountable]DFN the parts of plants that you eat but cannot digest. Fibre helps to keep you healthy by moving food quickly through your body :
2 [uncountable and countable]TIM a mass of threads used to make rope, cloth etc
3 [countable] a thin thread, or one of the thin parts like threads that form natural materials such as wood or carbon
5 if you feel something with every fibre of your being, you feel it very strongly :
He wanted her with every fibre of his being.
with every fibre of your being
literary
He wanted her with every fibre of his being.