The Collaborative International Dictionary of English v.0.48:

Gentry \Gen"try\, n. [OE. genterie, gentrie, noble birth,
   nobility, cf. gentrise, and OF. gentelise, genterise, E.
   gentilesse, also OE. genteleri high-mindedness. See Gent,
   a., Gentle, a.]
   1. Birth; condition; rank by birth. [Obs.] "Pride of
      gentrie." --Chaucer.
      [1913 Webster]

            She conquers him by high almighty Jove,
            By knighthood, gentry, and sweet friendship's oath.
                                                  --Shak.
      [1913 Webster]

   2. People of education and good breeding; in England, in a
      restricted sense, those between the nobility and the
      yeomanry. --Macaulay.
      [1913 Webster]

   3. Courtesy; civility; complaisance. [Obs.]
      [1913 Webster]

            To show us so much gentry and good will. --Shak.
      [1913 Webster]

U.S. Gazetteer (1990):

Gentry, AR (city, FIPS 26290)
  Location: 36.26681 N, 94.48285 W
  Population (1990): 1726 (684 housing units)
  Area: 5.9 sq km (land), 0.0 sq km (water)
  Zip code(s): 72734
Gentry, MO (village, FIPS 26776)
  Location: 40.33309 N, 94.42354 W
  Population (1990): 95 (48 housing units)
  Area: 0.6 sq km (land), 0.0 sq km (water)
  Zip code(s): 64453

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "gentry":
   Everyman, John Doe, Public, absolute, aristocracy, better sort,
   body politic, bona fide, citizenry, common man, commonwealth,
   community, community at large, cream, elite, estate, everybody,
   everyman, everyone, everywoman, factual, flower, folk, folks,
   general public, gentility, gentlefolk, gentlefolks, hard, honest,
   indubitable, landed gentry, lesser nobility, men, nation,
   nationality, people, people in general, persons, petite noblesse,
   polity, populace, population, positive, public, quality, real,
   reliable, samurai, sincere, society, squirearchy, state,
   sure-enough, true, trustworthy, unaffected, undesigning,
   undissembled, undoubted, unfeigned, unimpeachable, unquestionable,
   upper class, upper classes, upper crust, veritable, very, world,
   you and me