Crossword clues for No longer used: Abbr. 3 letters:OBSNo longer used: Abbr.OBSNo longer in use (abbr.)OBSNo longer in general use: Abbr.LBSWeights no longer officially used in Canada (abbr.)OBSNo longer in use, as words: Abbr.OBSNo longer used, as a word: Abbr.