The term 'As Late As' can be expressed in two different ways in a crossword puzzle. The first is 'TIL', which is an abbreviation for 'UNTIL'. This is a conjunction that is used to indicate a point in time up to which something will happen or be true. The second is 'UNTIL', which is a longer form of the same word. It is used to indicate a point in time up to which something will happen or be true, but it is more emphatic than 'TIL'.