Noun
An old-fashioned snack consisting of a slice of toasted bread between two untoasted slices.
Hyponyms: Beeton toast sandwich, Beeton's toast sandwich, Mrs. Beeton's toast sandwich, Mrs Beeton's toast sandwich, Mrs. Beeton toast sandwich, Mrs Beeton toast sandwich
Hypernym: bread
Used other than figuratively or idiomatically: see toast, sandwich.; Alternative form of toasted sandwich, a sandwich which has been toasted, but which is not simply a slice of toast bread as filling.
Source: en.wiktionary.org