Essential
Essential noun - Something necessary, indispensable, or unavoidable.
Occurrence and essential are semantically related. In some cases you can use "Occurrence" instead a noun "Essential".
Occurrence
Occurrence noun - Something that happens.
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Synonyms for Occurrence
Essential and occurrence are semantically related. Sometimes you can use "Essential" instead a noun "Occurrence".
Mutual synonyms
How words are described
Both words in one sentence
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As mentioned by the author in the Afterword of Volume 3, speaking with the enemy is not an essential part of the series theme, so unlike other mecha series pilots talking to each other during battle is a rare occurrence.
Source: Light Novel / Heavy Object -
Radio and TV host Eddie Trunk states in his book Eddie Trunk's Essential Guide To Hard Rock & Heavy Metal that Mars can actually get pretty talkative if interviewers (ie himself) go out of their way to engage him, which he notes is a rare occurrence.
Source: Music / Mötley Crüe
Cite this Source
Occurrence and Essential. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/essential/occurrence
Essential & Occurrence. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/essential/occurrence>.
Occurrence or Essential. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/essential/occurrence.
Google Ngram Viewer shows how "essential" and "occurrence" have occurred on timeline