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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 computer software for basic operation
noun computer operating system

Synonyms

noun computer operating system
noun party or celebration
noun celebration, party
noun responsibility in business or other enterprise

Antonyms

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

Antonyms

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
Cite This Source
noun coiffure