Consonance

Example:

"Outran the pauser, reason. Here lay Duncan, his silver skin lac'd with his golden blood; and his gash'd stabs look'd like a breach in nature for ruin's wasteful entrance."
Act 2, Scene 3, Lines 114-116).

Explanation:

The repeating "s" sound mimics that of a hissing snake. With Macbeth being the sneaky person he is, his snakelike qualities are shown when he beats around the bush trying to explain Duncan's murder to everyone.