The term 'cause to vanish' can be expressed in four different ways using crossword solutions. The first is 'ERODE, ' which has five letters and means to gradually wear away or destroy something. The second is 'DISPEL, ' which has six letters and means to cause something to disperse or DISAPPEAR. The third is 'FADE, ' which has four letters and means to gradually become weaker or less intense. Lastly, the fourth solution is 'DISAPPEAR, ' which has nine letters and means to cease to be visible or exist. All of these words refer to the same concept of causing something to vanish.