Talk:knife

knife and fork

You also use and if two noun phrases occur so frequently together that they are regarded as a single item. For example, knife and fork are always joined by and even in negative sentences such as ‘I haven’t got my knife and fork'
https://www.wordreference.com/EnglishUsage/and

--Backinstadiums (talk) 10:01, 9 December 2019 (UTC)