The term 'UNTIL THIS TIME' can be represented by four different words in a crossword puzzle: YET (3 letters), HITHERTO (8 letters), TONOW (5 letters), and TODATE (6 letters). YET is an adverb that means up to the present or until now. HITHERTO is an adverb that means up to this time or until now. TONOW is an adverb that means up to the present or until now. TODATE is an adverb that means up to the present or until now. All four words are used to describe the same concept, which is the idea of something happening up to the present moment.