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arc second
or arc-second
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This shows grade level based on the word's complexity.
noun
Astronomy. second2 (def. 4).
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?
Words nearby arc second
arcology, arcosolium, A.R.C.S., arc sec, arc secant, arc second, arcsin, arc sine, arc spectrum, arc tan, arc tangent
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023