How do you spell Shredding

Available Definitions:
1)  n. - The act of cutting or tearing into shreds.
2)  n. - That which is cut or torn off; a piece.
3)  imp. & p. p. - of Shred
4)  n. - To cut or tear into small pieces, particularly narrow and long pieces, as of cloth or leather.
5)  n. - To lop; to prune; to trim.