As a noun, it's a synonym for "flower", as a verb, it's to blossom or come into one's own
The Parts of Speech are the several kinds, or principal classes, into which words 
... A Pronoun is a word used in stead of a noun: as, The boy loves his book; ... An 
Adverb is a word added to a verb, a participle, an adjective, or an other ... with 
what other words each particular one is capable of making sense.