Sonder. noun. (uncountable) (neologism) The profound feeling of realizing that everyone, including strangers passing in the street, has a life as complex as one's own, which they are constantly living despite one's personal lack of awareness of it. Sonder is a collection of verses divided into five chapters: the self, flora and fauna, encounters, the citizen, and odes. What are your thoughts when clocks strike midnight? Are you a dreamer or a realist? Are you ready to pierce the veil?