Synonyms for Shred (same or very similar meaning)
WordNet sense 1 (a tiny or scarcely detectable amount):
iota, scintilla, smidgen, smidgeon, smidgin, tittle, whit, smidgeWordNet sense 2 (a small piece of cloth or paper):
rag, tag, tatter, tag endWordNet sense 3 (tear into shreds):
rip up, tear upFrom the ODE community, based on WordNetadd/edit