The term 'condense on a surface' can be described by three crossword solutions: ADSORBS (7 letters), ADSORB (6 letters), and ABRIDGE (7 letters). Adsorption is the process of a gas or liquid being attracted to and held onto a surface, while abridging is the act of shortening or summarizing something. Therefore, condensing on a surface could refer to a gas or liquid being adsorbed onto a surface, or it could refer to summarizing information on a surface.