Is “Fiber” a Scrabble word?
Yes
FIBER
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Fiber
/ˈfaɪ.bə/
noun
1.A single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread.
“The microscope showed a single blue fiber stuck to the sole of the shoe.”
2.A material in the form of fibers.
“The cloth is made from strange, somewhat rough fiber.”
3.A material whose length is at least 1000 times its width.
“Please use polyester fiber for this shirt.”