Looking at Onomatopoeia and Metaphor, Simile, Collective Nouns, and my Delusional Dictionary. For definitions of those, click here to read the introductory post to the series. This week’s words:Oink, Old, Ostentation, Obeisance. Onomatopoeia: Oink: Oink is considered a representation of the noise made by a domesticated porcine. But the pigs I’ve met, and, having lived …