What is another word for was one case?
Pronunciation: [wɒz wˈɒn kˈe͡ɪs] (IPA) 
There are multiple synonyms for the phrase "was one case," including "was one instance," "once occurred," "happened once," "was a singular occurrence," and "was a unique incident." All of these phrases convey the idea of a single event or situation that occurred in the past and may or may not have relevance in the present. Some other related synonyms that could be used include "was a rare occurrence," "was an isolated incident," or "was a one-time event." Ultimately, the choice of wording may depend on the context and intended tone of the message being conveyed.
