The Collaborative International Dictionary of English v.0.48:

Honey \Hon"ey\ (h[u^]n"[y^]), n. [OE. honi, huni, AS. hunig;
   akin to OS. honeg, D. & G. honig, OHG. honag, honang, Icel.
   hunang, Sw. h[*a]ning, Dan. honning, cf. Gr. ko`nis dust,
   Skr. ka[.n]a grain.]
   1. A sweet viscid fluid, esp. that collected by bees from
      flowers of plants, and deposited in the cells of the
      honeycomb.
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   2. That which is sweet or pleasant, like honey.
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            The honey of his language.            --Shak.
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   3. Sweet one; -- a term of endearment. --Chaucer.
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            Honey, you shall be well desired in Cyprus. --Shak.
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   Note: Honey is often used adjectively or as the first part of
         compound; as, honeydew or honey dew; honey guide or
         honeyguide; honey locust or honey-locust.
         [1913 Webster]

   Honey ant (Zool.), a small ant (Myrmecocystus melliger),
      found in the Southwestern United States, and in Mexico,
      living in subterranean formicares. There are larger and
      smaller ordinary workers, and others, which serve as
      receptacles or cells for the storage of honey, their
      abdomens becoming distended to the size of a currant.
      These, in times of scarcity, regurgitate the honey and
      feed the rest.

   Honey badger (Zool.), the ratel.

   Honey bear. (Zool.) See Kinkajou.

   Honey buzzard (Zool.), a bird related to the kites, of the
      genus Pernis. The European species is Pernis apivorus;
      the Indian or crested honey buzzard is Pernis
      ptilorhyncha. They feed upon honey and the larv[ae] of
      bees. Called also bee hawk, bee kite.

   Honey guide (Zool.), one of several species of small birds
      of the family Indicatorid[ae], inhabiting Africa and the
      East Indies. They have the habit of leading persons to the
      nests to wild bees. Called also honeybird, and
      indicator.

   Honey harvest, the gathering of honey from hives, or the
      honey which is gathered. --Dryden.

   Honey kite. (Zool.) See Honey buzzard (above).

   Honey locust (Bot.), a North American tree (Gleditschia
      triacanthos), armed with thorns, and having long pods
      with a sweet pulp between the seeds.

   Honey month. Same as Honeymoon.

   Honey weasel (Zool.), the ratel.
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The Collaborative International Dictionary of English v.0.48:

Locust tree \Lo"cust tree`\n. [Etymol. uncertain.] (Bot.)
   A large North American tree of the genus Robinia (Robinia
   Pseudacacia), producing large slender racemes of white,
   fragrant, papilionaceous flowers, and often cultivated as an
   ornamental tree. In England it is called acacia.
   [1913 Webster]

   Note: The name is also applied to other trees of different
         genera, especially to those of the genus Hymen[ae]a,
         of which Hymen[ae]a Courbaril is a lofty, spreading
         tree of South America; also to the carob tree
         (Ceratonia siliqua), a tree growing in the
         Mediterranean region.
         [1913 Webster]

   Honey locust tree (Bot.), a tree of the genus Gleditschia
      ) Gleditschia triacanthus), having pinnate leaves and
      strong branching thorns; -- so called from a sweet pulp
      found between the seeds in the pods. Called also simply
      honey locust.

   Water locust tree (Bot.), a small swamp tree (Gleditschia
      monosperma), of the Southern United States.
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WordNet (r) 3.0 (2006):

honey locust
    n 1: tall usually spiny North American tree having small
         greenish-white flowers in drooping racemes followed by long
         twisting seed pods; yields very hard durable reddish-brown
         wood; introduced to temperate Old World [syn: honey
         locust, Gleditsia triacanthos]