blossom in WordNet English dictionary

1. reproductive organ of angiosperm plants especially one having showy or colorful parts
   flower  bloom  blossom 
   
2. the period of greatest prosperity or productivity
   flower  prime  peak  heyday  bloom  blossom  efflorescence  flush 
   

1. produce or yield flowers
   "The cherry tree bloomed"
   bloom  blossom  flower 
   
2. develop or come to a promising stage
   "Youth blossomed into maturity"
   blossom  blossom out  blossom forth  unfold