Third-person singular simple present indicative form of soul search

(music, historical, US) A group of classical-music composers who lived during the late-19th and early-20th centuries in New England, based in and around Boston, Massachusetts.

A surname. / A diminutive of the male given names Mortimer and Morton.

(transitive) To grind (one's teeth) in pain or in anger. / (transitive) To grind between the teeth. / (figuratively) To clash together violently. / (Tyneside) To run away.