Inside the Universes

[pore.n.01] as in: any tiny hole admitting passage of a liquid (fluid or gas)

[pore.n.02] as in: any small opening in the skin or outer surface of an animal

[stoma.n.01] as in: a minute epidermal pore in a leaf or stem through which gases and water vapor can pass

[concentrate.v.02] as in: direct one's attention on something

					pore (English)
└── pouren (Middle English (1100-1500))