[1] : The Collaborative International Dictionary of English v.0.48

jam \jam\, n. prob. fr. jam, v.; but cf. also ar. jamad ice,
   jelly, j=amid congealed, jamd congelation, ice.
   a preserve of fruit boiled with sugar and water; also called
   jelly; as, raspberry jam; currant jam; grape jam.
   1913 webster

   jam nut. see check nut, under check.

   jam weld forging, a butt weld. see under butt.
      1913 webster
see also:
jelly jam nut check nut check jam weld butt 

[2] : The Collaborative International Dictionary of English v.0.48

jelly \jel"ly\, n.; pl. jellies.  formerly gelly, gely, f.
   gel'ee jelly, frost, fr. geler to freeze. l. gelare; akin
   to gelu frost. see gelid.
   1913 webster
   1. anything brought to a gelatinous condition; a viscous,
      translucent substance in a condition between liquid and
      solid; a stiffened solution of gelatin, gum, or the like.
      1913 webster

   2. the juice of fruits or meats boiled with sugar to an
      elastic consistence; as, currant jelly; calf's-foot jelly.
      1913 webster

   jelly bag, a bag through which the material for jelly is
      strained.

   jelly mold, a mold for forming jelly in ornamental shapes.
      

   jelly plant bot., australian name of an edible seaweed
      eucheuma speciosum, from which an excellent jelly is
      made. --j. smith.

   jelly powder, an explosive, composed of nitroglycerin and
      collodion cotton; -- so called from its resemblance to
      calf's-foot jelly.
      1913 webster
see also:
jellies gelid jelly bag jelly mold jelly plant eucheuma speciosum 
jelly powder 

[3] : The Collaborative International Dictionary of English v.0.48

jelly \jel"ly\, v. i. imp.  p. p. jellied; p. pr.  vb. n.
   jellying.
   to become jelly; to come to the state or consistency of
   jelly.
   1913 webster
see also:
jellied jellying 

[4] : WordNet (r) 2.0

jelly
     n 1: a preserve made of the jelled juice of fruit
     2: an edible jelly sweet or pungent made with gelatin and
        used as a dessert or salad base or a coating for foods
        syn: gelatin
     3: a substance having the consistency of semi-solid foods
     v : make into jelly; "jellify a liquid" syn: jellify
     also: jellied
see also:
gelatin jellify jellied 

[5] : Moby Thesaurus II by Grady Ward, 1.0

94 moby thesaurus words for "jelly":
   jell-o, albumen, batter, beat up, blancmange, bonnyclabber, butter,
   cake, candy, churn, clabber, clot, clump, cluster, coagulate,
   colloid, colloidize, comfit, compote, concrete, confection,
   confectionery, confiture, congeal, conserve, cornstarch, cream,
   curd, curdle, dough, egg white, emulsify, emulsionize, frosting,
   gaum, gel, gelatin, gelatinate, gelatinize, glair, glaze, glop,
   glue, gluten, goo, gook, goop, gruel, gumbo, gunk, honey, icing,
   incrassate, inspissate, jam, jell, jellify, knot, loblolly, lopper,
   lump, marmalade, meringue, molasses, mousse, mucilage, mucus, pap,
   paste, porridge, preserve, pudding, pulp, puree, putty, rob,
   semifluid, semiliquid, set, size, soup, starch, sticky mess, sweet,
   sweet stuff, sweetmeat, sweets, syrup, thick, thicken, treacle,
   tutti-frutti, whip, whipped cream

Jelly >> J Words
Jelly, definition of term: Jelly
jelly_pag1.html

Jelly Roll >> J Words
Jelly Roll, definition of term: Jelly Roll
jelly+roll_pag1.html

Jelly Bean >> J Words
Jelly Bean, definition of term: Jelly Bean
jelly+bean_pag1.html

Royal Jelly >> R Words
Royal Jelly, definition of term: Royal Jelly
royal+jelly_pag1.html

Petroleum Jelly >> P Words
Petroleum Jelly, definition of term: Petroleum Jelly
petroleum+jelly_pag1.html

Comb Jelly >> C Words
Comb Jelly, definition of term: Comb Jelly
comb+jelly_pag1.html