[ sahy-op ]
/ ˈsaɪ ɒp /
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(formerly) the secret and central U.S. contingency plan for waging a nuclear war with the Soviet Union.
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Origin of SIOP
Words nearby SIOP
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021