The term MIL is an acronym for military, and the crossword solutions are all related to different ranks in the military. GENL stands for General, which is the highest rank in the army. GEN stands for General Officer, which is a rank just below General. ADM stands for Admiral, which is the highest rank in the navy. SGT stands for Sergeant, which is a non-commissioned officer rank. COMDR stands for Commander, which is a senior naval officer rank. All of these ranks are considered to be bigwigs in the military, as they are all high-ranking positions.