SINE DIE Meaning of SINE DIE in English [ ˌsi:neɪ'di:eɪ , ˌsʌɪnɪ 'dʌɪi: ]■ adverb (with reference to an adjournment) with no appointed date for resumption.OriginL., lit. 'without a day'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004