From acquihire to humanzee, Erin McKean looks back at new and interesting words that appeared in The Wall Street Journal in 2011. A field guide to unusual words in this week's Wall Street Journal.

The Spanish words in the first column resemble the English ones in the third column, but have different meanings. Gracias a Susana Hernández Araico, Ph. D., por comprobar esta lista.

There are some words that simply feel truer in Spanish than they do in English. I call these home words and heart words because I associate them with the place I most grew up using them: at home ...