BLOOM

a flower, especially one cultivated for its beauty

a delicate powdery surface deposit on certain fresh fruits, leaves, or stems

a full, bright sound in a recording

produce flowers; be in flower

coat (a lens) with a special surface layer so as to reduce reflection from its surface.

a mass of iron, steel, or other metal hammered or rolled into a thick bar for further working

make (iron, steel, etc.) into a bloom.