The term 'Lee Side' refers to the side of the American Civil War led by General Robert E. Lee. The crossword solutions for this term are GRAY (4 letters), Rebs (4 letters), South (5 letters), and CSA (3 letters). GRAY is a reference to the Confederate Army's GRAY uniforms. Rebs is a nickname for the Confederate soldiers, short for 'rebels'. South is a reference to the Confederate States of America, which was the name of the Confederacy. CSA is an acronym for the same.