The term 'is appropriate' can be expressed in a variety of ways. The crossword solutions FITS (4 letters), SUITS (5 letters), and TIESIN (6 letters) all provide different interpretations of the phrase. FITS is a verb meaning to be the right size or shape for something, while SUITS is a noun referring to a set of clothes worn for formal occasions. Finally, TIESIN is a verb meaning to be relevant or connected to something. All three words can be used to describe a situation that is suitable or fitting.