Is heil in the English dictionary?

Yes, the word heil is in the English dictionary, but it is listed as a German loanword with specific historical context rather than as a common English word. In major English dictionaries such as Merriam-Webster, Oxford English Dictionary, and Cambridge Dictionary, heil is defined as a German interjection meaning hail, as in health or prosperity, and is most famously known from the phrase Sieg Heil meaning hail victory and Heil Hitler meaning hail Hitler, used as a Nazi salute in Germany from 1933 to 1945. The dictionaries include it because it appears in English historical texts, World War II literature, and discussions of German history, and English speakers may encounter it in that context. It is marked as German and often labeled as historical or used in reference to Nazism. As a verb, to heil is also listed meaning to give the Nazi salute or to salute with heil. It is not considered standard everyday English vocabulary like hello or goodbye, and its use outside historical discussion is extremely offensive due to its association with Nazism. Scrabble dictionaries also include heil as a valid word because it appears in official word lists, but mainstream English dictionaries include it primarily for historical and etymological completeness with a strong usage note about its offensive connotations.