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

rush \rush\, n. oe. rusche, rische, resche, as. risce, akin to
   lg. rusk, risch, d.  g. rusch; all probably fr. l. ruscum
   butcher's broom; akin to goth. raus reed, g. rohr.
   1. bot. a name given to many aquatic or marsh-growing
      endogenous plants with soft, slender stems, as the species
      of juncus and scirpus.
      1913 webster

   note: some species are used in bottoming chairs and plaiting
         mats, and the pith is used in some places for wicks to
         lamps and rushlights.
         1913 webster

   2. the merest trifle; a straw.
      1913 webster

            john bull's friendship is not worth a rush.
                                                  --arbuthnot.
      1913 webster

   bog rush. see under bog.

   club rush, any rush of the genus scirpus.

   flowering rush. see under flowering.

   nut rush
      a any plant of the genus scleria, rushlike plants with
          hard nutlike fruits.
      b a name for several species of cyperus having
          tuberous roots.

   rush broom, an australian leguminous plant viminaria
      denudata, having long, slender branches. also, the
      spanish broom. see under spanish.

   rush candle, see under candle.

   rush grass, any grass of the genus vilfa, grasses with
      wiry stems and one-flowered spikelets.

   rush toad zool., the natterjack.

   scouring rush. bot. same as dutch rush, under dutch.
      

   spike rush, any rushlike plant of the genus eleocharis,
      in which the flowers grow in dense spikes.

   sweet rush, a sweet-scented grass of arabia, etc.
      andropogon schoenanthus, used in oriental medical
      practice.

   wood rush, any plant of the genus luzula, which differs
      in some technical characters from juncus.
      1913 webster
see also:
juncus scirpus bog rush bog club rush flowering rush 
flowering nut rush scleria cyperus rush broom 
viminaria denudata spanish rush candle candle rush grass 
vilfa rush toad scouring rush dutch rush dutch. 
spike rush eleocharis sweet rush andropogon schoenanthus wood rush 
luzula 

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

nut \nut\ nu^t, n. oe. nute, note, as. hnutu; akin to d.
   noot, g. nuss, ohg. nuz, icel. hnot, sw. n"ot, dan.
   n"od.
   1913 webster
   1. bot. the fruit of certain trees and shrubs as of the
      almond, walnut, hickory, beech, filbert, etc., consisting
      of a hard and indehiscent shell inclosing a kernel.
      1913 webster

   2. a perforated block usually a small piece of metal,
      provided with an internal or female screw thread, used on
      a bolt, or screw, for tightening or holding something, or
      for transmitting motion. see illust. of 1st bolt.
      1913 webster

   3. the tumbler of a gunlock. --knight.
      1913 webster

   4. naut. a projection on each side of the shank of an
      anchor, to secure the stock in place.
      1913 webster

   5. pl. testicles. vulgar slang
      pjc

   check nut, jam nut, lock nut, a nut which is screwed up
      tightly against another nut on the same bolt or screw, in
      order to prevent accidental unscrewing of the first nut.
      

   nut buoy. see under buoy.

   nut coal, screened coal of a size smaller than stove coal
      and larger than pea coal; -- called also chestnut coal.
      

   nut crab zool., any leucosoid crab of the genus ebalia
      as, ebalia tuberosa of europe.

   nut grass bot., see nut grass in the vocabulary.

   nut lock, a device, as a metal plate bent up at the
      corners, to prevent a nut from becoming unscrewed, as by
      jarring.

   nut pine. bot. see under pine.

   nut rush bot., a genus of cyperaceous plants scleria
      having a hard bony achene. several species are found in
      the united states and many more in tropical regions.

   nut tree, a tree that bears nuts.

   nut weevil zool., any species of weevils of the genus
      balaninus and other allied genera, which in the larval
      state live in nuts.
      1913 webster
see also:
bolt check nut jam nut lock nut nut buoy buoy 
nut coal chestnut coal nut crab ebalia ebalia tuberosa 
nut grass nut grass nut lock nut pine pine 
nut rush scleria nut tree nut weevil balaninus 

Brazil Nut >> B Words
Brazil Nut, definition of term: Brazil Nut
brazil+nut_pag1.html

Betel Nut >> B Words
Betel Nut, definition of term: Betel Nut
betel+nut_pag1.html

Cashew Nut >> C Words
Cashew Nut, definition of term: Cashew Nut
cashew+nut_pag1.html

Bolt And Nut >> B Words
Bolt And Nut, definition of term: Bolt And Nut
bolt+and+nut_pag1.html