Entry 2 senses · 2 variants Webster, 1913 Marcher /mär'-chẽr/ · March·er · IPA /ˈmɑɹt͡ʃɚ/ n. n. 01 n. One who marches. 1. One who marches. 02 n. The lord or officer who defended the marches or borders of a territory. 1. The lord or officer who defended the marches or borders of a territory.