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office hours

noun
1.
the hours during which a professional person or an office conducts regular business.
2.
the hours a person spends working in an office.
Origin
1795-1805
1795-1805
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for office-hours

office hours

plural noun
1.
the hours during which an office is open for business
2.
the number of hours worked in an office
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for office-hours
noun

the hours and days set by a professional for office consultations

Dictionary.com's 21st Century Lexicon
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Difficulty index for office hours

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Word Value for office

14
15
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