NOUN (3)

1. a Hindu or Buddhist religious leader and spiritual teacher;

2. each of the first ten leaders of the Sikh religion;

3. a recognized leader in some field or of some movement;
- Example: "a guru of genomics"

The Collaborative International Dictionary of English v.0.48:

Gooroo \Goo*roo"\, Guru \Gu*ru"\ (g[=oo]*r[=oo]"), n. [Hind.
   gur[=u] a spiritual parent or teacher, Skr. guru heavy,
   noble, venerable, teacher. Cf. Grief.]
   1. A spiritual teacher, guide, or confessor among the Hindus;
      a guru. --Malcom.
      [1913 Webster]

   2. (g[=oo]"r[=oo]) one who has expert knowledge of a
      technical area and serves as an advisor to others; an
      expert and teacher. Usually written guru.
      [PJC]

   3. (g[=oo]"r[=oo]) an intellectual or spiritual guide or
      advisor; a mentor. Usually written guru.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Guru \Gu"ru\ (g[=oo]"r[=oo]), n.
   Same as gooroo.
   [PJC]

WordNet (r) 3.0 (2006):

guru
    n 1: a Hindu or Buddhist religious leader and spiritual teacher
    2: each of the first ten leaders of the Sikh religion
    3: a recognized leader in some field or of some movement; "a
       guru of genomics"

The Free On-line Dictionary of Computing (19 January 2023):

guru

    An expert, especially in "Unix guru".  Implies not
   only wizard skill but also a history of being a knowledge
   resource for others.  Less often, used (with a qualifier) for
   other experts on other systems, as in "VMS guru".

   See source of all good bits.

   [Jargon File]

   (1996-06-01)


The Jargon File (version 4.4.7, 29 Dec 2003):

guru
 n.

    [Unix] An expert. Implies not only wizard skill but also a history of
    being a knowledge resource for others. Less often, used (with a qualifier)
    for other experts on other systems, as in VMS guru. See source of all good
    bits.