UO

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abbreviation

Urban Operations: refers to combat, warfare, and military operations in urban areas.

QUIZ

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”?

navy

beryl

azure

TAKE THE QUIZ TO FIND OUT

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Words nearby UO

unwritten law, unyielding, unyoke, unzip, unzipped, UO, U. of S. Afr., up, up a creek, up against, upalong

How to use UO in a sentence

The verbs of this class belong to the sixth ablaut-series ( 12), and accordingly have a in the present; uo in the pret.
A Middle High German Primer|Joseph Wright
The protoxide of uranium (UO) is black, uncrystalline, or forms a brown powder.
A System of Instruction in the Practical Use of the Blowpipe|Anonymous
The feathers were knotted by twos or threes with twisted strands of the olona, the process being called uo.
Hawaiian Folk Tales|Various
He concludes, therefore, if uo signifies heart, that uotan denotes “the inmost heart” or “heart of the expanse.”
Day Symbols of the Maya Year|Cyrus Thomas

But thou maist more fitly dispose and order this proportion thus: As ur, is unto nl: so is uo unto oy.
The Way To Geometry|Peter Ramus