Definition of "eso" []

• An element in some words of Greek origin, meaning ‘within.’ (noun)

The Century Dictionary (Public Domain)

• "Justamente eso, ¡eso!, es lo que convierte un texto en poema."
• ""Well," he says, "in Spanish, 'eso si que es' means 'That's what I want!'""
• "I mean, I know Google and Wiki are just strokes away but some of this stuff puts the "eso" in esoteric."