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Hint: Wildcards can be used multiple times in a query.
English
noun
:
tetrad
1.
tetrad
(quantity)
the cardinal number that is the sum of three and one
Synonyms
4
,
four
,
foursome
,
IV
,
Little Joe
,
quadruplet
,
quartet
,
quatern
,
quaternary
,
quaternion
,
quaternity
Broader (hypernym)
digit
,
figure
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