"46A" is not a term that has a standard dictionary definition as it seems to be a specific alphanumeric code or designation that may vary in meaning depending on the context in which it is used. It is possible that "46A" refers to a product, a section or paragraph of a document, a bus or train route, a street name, or some other identifier.
To get a more accurate definition of "46A," the context or domain in which it is being used must be specified. For instance, if "46A" is used in the context of a bus route, it could refer to a specific bus line that operates within a particular area or serves specific locations. In the context of a document, "46A" may indicate a section or paragraph of the document that contains relevant information. In the context of a product, "46A" might be a model number or a part number used to identify a particular item.
However, without additional information clarifying the specific meaning or context of "46A," it is challenging to provide an accurate definition. It is advised to provide more details or consult the relevant source to obtain a more precise explanation in relation to the specific usage of "46A."