Word Study
    hackberry
WORDNET DICTIONARY
Noun hackberry has 2 senses
- hackberry(n = noun.plant) nettle tree - any of various trees of the genus Celtis having inconspicuous flowers and small berrylike fruits; Array is a member of celtis, genus celtis
 - hackberry(n = noun.food) sugarberry - small edible dark purple to black berry with large pits; southern United States; Array is a kind of berry
 
has particulars: celtis australis, european hackberry, mediterranean hackberry, american hackberry, celtis occidentalis, celtis laevigata, sugarberry
is a kind of tree
CIDE DICTIONARY
hackberry, n. 
                                            
                                         A genus of trees (Celtis ) related to the elm, but bearing drupes with scanty, but often edible, pulp.  Celtis occidentalis  is common in the Eastern United States.                                         Gray.                                         [1913 Webster]                                                                                                                    
                                                                                    OXFORD DICTIONARY
hackberry, n.  (pl.  -ies) US 1 any tree of the genus Celtis, native to N. America, bearing purple edible berries.
2 the berry of this tree.
                    2 the berry of this tree.
Etymology
                        var. of hagberry, of Norse orig.
                                    
            For further exploring for "hackberry" in Webster Dictionary Online
        

