• burst, chop, crack, cranny, craze, fire-crack, fissure, flake, flaw, joint, rent, rictus, rictus, rift, rive, slit, split, spring, tear
• cracked, crazed, flawed, rough, shaky
• to slit, to slit, slit, to split, to split, split
• to flaw, to spring, sprang, sprung
• to burst, burst, to bust, to crack, to exfoliate, to fragment