[ sahy-op ]
/ ˈsaɪ ɒp /
(formerly) the secret and central U.S. contingency plan for waging a nuclear war with the Soviet Union.
TAKE THIS QUIZ IF A DAZZLING VOCABULARY IS YOUR DESIDERATUM!
Have the Words of the Day from October 19–25, 2020, made an indelible mark on your memory? Take the quiz to find out!
Question 1 of 7
What does “clement” mean?
Origin of SIOP
Words nearby SIOP
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020