noun
fiber
fi·ber
FEYE-buh
noun
1
A thin, thread-like strand of material, often twisted together with others to make thread or cloth.
"The rope is made from tightly woven synthetic fiber."
2
The indigestible part of plant food that helps digestion.
"Whole grains and vegetables are good sources of fiber."
3
Inner strength or moral resolve.
"It takes real fiber to admit you were wrong."
How to Use Fiber
Learner’s notesIn plain EnglishA thread-like strand of material, dietary roughage, or figurative moral strength.
UK vs US
American English spells it "fiber"; British English spells it "fibre."
Easily confused with
Common pairings
dietary fiber
optical fiber
moral fiber
Word Forms
fibers plural
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The rope is made from tightly woven synthetic _____.
Etymology
From French fibre, from Latin fibra.