The term 'highest level' can be represented by nine different words in a crossword puzzle: TOPFLIGHT (9 letters), CREST (5 letters), ACME (4 letters), ELITE (5 letters), CAP (3 letters), APEX (4 letters), PEAK (4 letters), BIGTIME (7 letters), TOPRANK (7 letters), TOPSIDE (7 letters), and PINNACLE (8 letters). Each of these words is a synonym for the highest level, and they are all used to describe something that is the best or most successful. For example, a topflight athlete is one of the best in their sport, while a CREST is the highest point of a mountain. Similarly, an ACME is the highest point of achievement, and ELITE is used to describe the most exclusive group of people. A CAP is the highest point of a hat, and APEX is the highest point of a triangle. A PEAK is the highest point of a hill, bigtime is used to describe something that is very important or successful, and toprank is used to describe someone who is at the top of their field. Finally, topside is the highest part of a ship, and PINNACLE is the highest point of a structure.