Home › Words › N › necessairenecessaire/nɛsɪˈsɛə/necessaire means A small case for holding personal items, especially toiletries.necessaire is pronounced /nɛsɪˈsɛə/.EtymologyFrom French nécessaire. Doublet of necessary.nounA small case for holding personal items, especially toiletries.Definitions & examples from Wiktionary (CC BY-SA 3.0).