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Common words appear frequently in written and spoken language across many genres from radio to academic journals.
Informal words should be reserved for casual, colloquial communication.
noun making conscious or alert

Antonyms

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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noun dispute, question

Antonyms

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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noun challenge, defiance

Synonyms

noun challenge, defiance
noun motive

Antonyms

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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noun a disturbed mental state

Antonyms

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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