Spinster tags "spinster" (meaning "...unmarried woman, typically an older woman beyond the usual age for marriage") as "derogatory" and "a good example of the way in which a word acquires strong connotations to the extent that it can no longer be used in a neutral sense." The 1828 and 1913 editions of "Merriam Webster's Dictionary" defined spinster in two ways: "1. A woman who spins, or whose occupation is to spin. 2. Law: An unmarried or single woman." By the 1800s, the term had evolved to include women who chose not to marry. During that century middle-class spinsters, as well as
White certificates for an obligation. The third phase runs from April 2008 to December 2012 and is intended to deliver 185Mt lifetime savings by 2012. Connecticut, Pennsylvania, and Nevada have adopted Energy Efficiency Portfolio Standards that require regulated utilities to meet a certain percentage of their projected power needs through energy efficiency. Utilities must meet their obligations by either reducing their consumers’ energy usage, or by purchasing energy efficiency certificates (white certificates). More states are expected to follow in the near future. There is also a voluntary market where large corporations are purchasing energy efficiency certificates as a way of meeting their