1. (adv.) In the middle; at half the distance; imperfectly; partially; as, he halfway yielded.

2. (a.) Equally distant from the extremes; situated at an intermediate point; midway.

amidships average betwixt and between center centermost central core equatorial equidistant half half-and-half in medias res in the mean in the middle interior intermediary intermediate mean medial medially median mediocre mediterranean medium mediumly mesial mezzo mezzo-mezzo mid middle middlemost middling midland midmost midships midway nuclear one-and-a-half part partial partly