GRE Word List
The meaning of the word leaven is a substance (such as yeast) used to produce fermentation in dough or a liquid.
|marked by eager hopefulness : confidently optimistic
|to treat (something sacred) with abuse, irreverence, or contempt : desecrate
|to compress the throat of : choke
|a frame usually of two upright posts and a transverse beam from which criminals are hanged
|constituting a separate entity : individually distinct
|a star that suddenly increases its light output tremendously and then fades away to its former obscurity in a few months or years