The Collaborative International Dictionary of English v.0.48:

Bliss \Bliss\ (bl[i^]s), n.; pl. Blisses (bl[i^]s"[e^]z). [OE.
   blis, blisse, AS. blis, bl[imac][eth]s, fr. bl[imac][eth]e
   blithe. See Blithe.]
   Orig., blithesomeness; gladness; now, the highest degree of
   happiness; blessedness; exalted felicity; heavenly joy.
   [1913 Webster]

         An then at last our bliss
         Full and perfect is.                     --Milton.
   [1913 Webster]

   Syn: Blessedness; felicity; beatitude; happiness; joy;
        enjoyment. See Happiness.
        [1913 Webster]

WordNet (r) 3.0 (2006):

bliss
    n 1: a state of extreme happiness [syn: bliss, blissfulness,
         cloud nine, seventh heaven, walking on air]

Moby Thesaurus II by Grady Ward, 1.0:

80 Moby Thesaurus words for "bliss":
   Canaan, New Jerusalem, Zion, affability, agreeability,
   agreeableness, amenity, amiability, amicability, beatification,
   beatitude, bewitchment, blessedness, blissfulness, blitheness,
   cheer, cheerfulness, cloud nine, compatibility, complaisance,
   congeniality, cordiality, delectation, delight, ecstasy, ecstatics,
   elation, elysium, empyrean, enchantment, enjoyableness, enjoyment,
   exaltation, exhilaration, exuberance, felicitousness, felicity,
   gaiety, geniality, gladness, glee, goodliness, goodness,
   graciousness, happiness, happy hunting ground, harmoniousness,
   harmony, heaven, high spirits, intoxication, joy, joyance,
   joyfulness, joyousness, mellifluousness, mellowness, niceness,
   nirvana, overhappiness, overjoyfulness, paradise, pleasance,
   pleasantness, pleasantry, pleasingness, pleasurability,
   pleasurableness, pleasure, pleasurefulness, rapport, rapture,
   ravishment, seventh heaven, spirituality, sunshine, sweetness,
   transport, unalloyed happiness, welcomeness



The Free On-line Dictionary of Computing (30 December 2018):

Basic Language for Implementation of System Software
BLISS

    (BLISS, or allegedly, "System Software
   Implementation Language, Backwards") A language designed by
   W.A. Wulf at CMU around 1969.

   BLISS is an expression language.  It is block-structured,
   and typeless, with exception handling facilities,
   coroutines, a macro system, and a highly optimising
   compiler.  It was one of the first non-assembly languages
   for operating system implementation.  It gained fame for its
   lack of a goto and also lacks implicit dereferencing: all
   symbols stand for addresses, not values.

   Another characteristic (and possible explanation for the
   backward acronym) was that BLISS fairly uniformly used
   backward keywords for closing blocks, a famous example being
   ELUDOM to close a MODULE.  An exception was BEGIN...END though
   you could use (...) instead.

   DEC introduced the NOVALUE keyword in their dialects to allow
   statements to not return a value.

   Versions: CMU BLISS-10 for the PDP-10; CMU BLISS-11,
   BLISS-16, DEC BLISS-16C, DEC BLISS-32, BLISS-36 for
   VAX/VMS, BLISS-36C.

   ["BLISS: A Language for Systems Programming", CACM
   14(12):780-790, Dec 1971].

   [Did the B stand for "Better"?]

   (1997-03-01)


U.S. Gazetteer Places (2000):

Bliss, ID -- U.S. city in Idaho
   Population (2000):    275
   Housing Units (2000): 147
   Land area (2000):     0.517141 sq. miles (1.339388 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.517141 sq. miles (1.339388 sq. km)
   FIPS code:            08470
   Located within:       Idaho (ID), FIPS 16
   Location:             42.926123 N, 114.948697 W
   ZIP Codes (1990):     83314
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Bliss, ID
    Bliss