The Collaborative International Dictionary of English v.0.48:

Management \Man"age*ment\, n. [From Manage, v.]
   1. The act or art of managing; the manner of treating,
      directing, carrying on, or using, for a purpose; conduct;
      administration; guidance; control; as, the management of a
      family or of a farm; the management of a business
      enterprise; the management of state affairs. "The
      management of the voice." --E. Porter.
      [1913 Webster]

   2. Business dealing; negotiation; arrangement.
      [1913 Webster]

            He had great managements with ecclesiastics.
                                                  --Addison.
      [1913 Webster]

   3. Judicious use of means to accomplish an end; conduct
      directed by art or address; skillful treatment; cunning
      practice; -- often in a bad sense.
      [1913 Webster]

            Mark with what management their tribes divide
            Some stick to you, and some to t'other side.
                                                  --Dryden.
      [1913 Webster]

   4. The collective body of those who manage or direct any
      enterprise or interest; the board of managers.
      [1913 Webster]

   Syn: Conduct; administration; government; direction;
        guidance; care; charge; contrivance; intrigue.
        [1913 Webster]

WordNet (r) 3.0 (2006):

management
    n 1: the act of managing something; "he was given overall
         management of the program"; "is the direction of the
         economy a function of government?" [syn: management,
         direction]
    2: those in charge of running a business

Moby Thesaurus II by Grady Ward, 1.0:

229 Moby Thesaurus words for "management":
   accomplishment, achievement, acme, action, administration, agency,
   archon, auspices, austerity, austerity program, authority,
   authorization, be-all and end-all, blue ribbon, board,
   board of directors, board of regents, board of trustees, bosses,
   bureaucracy, cabinet, cadre, canniness, care, carefulness,
   championship, chancellor, charge, chariness, chief executive,
   chief executive officer, civil government, command, commission,
   completion, conduct, control, council, cure, custodianship,
   custody, dean, directing, direction, directorate, directors,
   directorship, directory, discharge, discipline, dispatch,
   dispensation, disposition, dominion, driving, economic planning,
   economicalness, economy, economy of means, effectiveness,
   effectuation, empery, empire, employment, enactment, execution,
   executive, executive arm, executive committee, executive director,
   executive hierarchy, executive officer, executive secretary,
   executives, exercise, exploitation, false economy, first place,
   first prize, forehandedness, form of government, frugality,
   frugalness, functioning, good management, governance,
   governing board, governing body, government, guardianship,
   guidance, handling, hands, headship, hegemony, height, hierarchy,
   higher echelons, higher-ups, highest, husbandry, imperium,
   implementation, influence, infrastructure, intendance,
   interlocking directorate, jurisdiction, keeping, kingship, lead,
   leadership, leading, lordship, magistrate, managery, managing,
   managing director, manipulation, mastership, mastery, maximum,
   means of dealing, ministry, most, ne plus ultra, new high,
   occupation, officer, official, officialdom, operancy, operation,
   ordering, oversight, palms, paramountcy, parsimoniousness,
   parsimony, pastorage, pastorate, pastorship, patronage,
   performance, performing, perpetration, pilotage,
   political organization, polity, power, practice, prefect, prelacy,
   presidency, president, prexy, primacy, protectorship, providence,
   provost, prudence, prudential administration, record, regime,
   regimen, regnancy, regulation, reign, responsibility, rule,
   ruling class, ruling classes, running, safe hands, say, secretary,
   sovereignty, sparingness, steerage, steering, steering committee,
   stewardship, superintendence, superintendency, supervision,
   supremacy, sway, system of government, the Establishment,
   the administration, the authorities, the brass, the conn,
   the executive, the helm, the ingroup, the interests,
   the people upstairs, the power elite, the power structure, the top,
   the wheel, them, they, thrift, thriftiness, tight purse strings,
   top brass, top spot, transaction, treasurer, treatment, tutelage,
   unwastefulness, usage, using, utilization, vice-chancellor,
   vice-president, ward, warden, wardenship, wardship, watch and ward,
   wing, work, working, workings, zenith



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

management
 n.

    1. Corporate power elites distinguished primarily by their distance from
    actual productive work and their chronic failure to manage (see also suit
    ). Spoken derisively, as in ?Management decided that ...?.

    2. Mythically, a vast bureaucracy responsible for all the world's minor
    irritations. Hackers' satirical public notices are often signed ?The Mgt?;
    this derives from the Illuminatus novels (see the Bibliography in Appendix
    C).


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

management

   1. Corporate power elites distinguished primarily by their
   distance from actual productive work and their chronic failure
   to manage (see also suit).  Spoken derisively, as in
   "*Management* decided that ...".

   2. Mythically, a vast bureaucracy responsible for all the
   world's minor irritations.  Hackers' satirical public notices
   are often signed "The Mgt"; this derives from the
   "Illuminatus!" novels.

   [Jargon File]

   (1995-02-28)