Likkutei Sichos Dictionary
The following sites have Yiddish dictionaries:
Will (Ratzon):"Will" is the spiritual state associated with the lowest of the three heads of Keter.
Wisdom (Chochmah):"Wisdom" is the second of the ten sefirot, and the first power of conscious intellect within Creation.
Worlds, the Four:The main stages in the creative process resulting from tzimtzum; in descending order Atzilus, Beriah, Yetzirah and Asiyah, often referred to by their acronym as Ab-ya.