noun (n)

• any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit(noun.plant)

  Synonym:
  service tree, serviceberry, shadblow, shadbush
  

  source: wordnet30
• edible purple or red berries(noun.food)

  Synonym:
  saskatoon, serviceberry, shadberry
  

  source: wordnet30
• The small applelike berry of American trees of genus Amelanchier; -- also called service berry.(noun)

  source: webster1913