Definition of "on occasion" []

• Occasionally, from time to time, now and then (adverb)

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• "My preference was riding three- and five-gaited show horses, but on occasion I joined the foxhunts, which were followed by hunt breakfasts at private homes."
• "When fourteen he was entrusted with the responsibility of preparing drawings of Rochester Castle, and the year following, on occasion of his second visit to France, we find him suffering from overwork while sketching in the Cathedral of Notre"
• "The writers are usually journalists, and on occasion they may have additional training like Joseph Wambaugh, formerly a police detective, who wrote The Onion Field, which depicts the murder of a police officer."