The term 'Four Front' is a phrase that refers to a situation in which all four sides of a conflict are actively engaged. The two crossword solutions for this term are PETIT and TETRA, both of which have five letters. PETIT is a French word meaning 'SMALL, ' while TETRA is a Greek word meaning 'four.' Together, these two words can be interpreted as 'four SMALL fronts, ' which is a reference to the four sides of a conflict.