- (initialism) . (rail transport, UK) Electric Train Heat / Electric Train Heating.
- Proper noun. A short form of the female given name '''Ethel'''.
- Noun. A letter (''capital'' '''Ð''', ''small'' '''ð''') introduced into Old English to represent its dental fricative, then not distinguished from the letter thorn, no longer used in English but still in modern use in Icelandic, Faroese, and phonetics to represent the voiced dental fricative "th" sound as in the English word '''''th'''en''.