On occasion
On occasion adverb - Now and then or here and there.
When and on occasion are semantically related. in before topic. In some cases you can use "When" instead an adverb phrase "On occasion".
When
On occasion and when are semantically related. Sometimes you can replace phrase "On occasion" with "When", this terms are similar.
Mutual synonyms
Cite this Source
When and On occasion. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/on_occasion/when
On occasion & When. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/on_occasion/when>.
When or On occasion. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/on_occasion/when.
Google Ngram Viewer shows how "on occasion" and "when" have occurred on timeline