Hear a word and type it out. How many can you get right?
TAKE THE QUIZumbral symbol
noun
: a symbol indicating substitution in turn of each of n given values followed by addition of the results obtained
the umbral symbol a in the expression xaya which stands for x1y1+x2y2+ … +xⁿyn
Love words? Need even more definitions?
Merriam-Webster unabridged
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- The business’s new computer system proved not to be a panacea.


Can you make 12 words with 7 letters?
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