March UK /mɑːtʃ/US /mɑɹt͡ʃ/noun 1phrases 3 noun1 •The third month of the Gregorian calendar, following February and preceding April, containing the northward equinox.And on March 21, Virginia passed a law banning colorants from school food, effective July 1, 2027. — 2025 Phrases with March march onTo protest (a place or institution). slow marchA controlled walking pace in a deliberate, steady, rhythmic manner. steal a marchTo gain an advantage unobserved.