Dictionary.com
definitions

objection

[uhb-jek-shuhn]
|

noun

a reason or argument offered in disagreement, opposition, refusal, or disapproval.
the act of objecting, opposing, or disputing: His ideas were open to serious objection.
a ground or cause for objecting.
a feeling of disapproval, dislike, or disagreement.

Origin of objection

1350–1400; Middle English objeccioun (< Anglo-French) < Late Latin objectiōn- (stem of objectiō), equivalent to Latin object(us) (see object) + -iōn- -ion
Related formsnon·ob·jec·tion, nounpre·ob·jec·tion, nounsu·per·ob·jec·tion, noun

Synonyms for objection

4. complaint, protest, criticism.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for non-objection

objection

noun

an expression, statement, or feeling of opposition or dislike
a cause for such an expression, statement, or feeling
the act of objecting
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
Word Origin and History for non-objection

objection

n.

late 14c., from Old French objeccion "reply, retort" (12c.) and directly from Late Latin obiectionem (nominative obiectio), "a throwing or putting before," noun of action from past participle stem of Latin obicere "to oppose" (see object (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
Idioms and Phrases with non-objection

objection

see raise an objection.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.