What is another word for "crevice"?

Roget's Thesaurus (1911) lists these synonyms for "crevice": abra, absence, abysm, abyss, barranca, between, breach, breachy, break, caesura, canon, chap, chasm, chink, cleft, clove, crack, cranny, creek, crevasse, cut, defile, dike, far, fissure, flaw, frith, furrow, gap, gape, gash, gorge, gulch, gulf, gully, ha-ha, hiatus, hole, incompleteness, inlet.