$ npm install npm-synonym --global

$ npm-synonym strange strange strange
[ 'new',
  'non compos',
  'non compos mentis',
  'not all there',
  'not right',
  'novel',
  'nutty' ]
[ 'passing strange',
  'peculiar',
  'phenomenal',
  'prodigious',
  'psycho',
  'puzzling' ]
[ 'mad',
  'maddened',
  'maggoty',
  'manic',
  'marvelous',
  'mazed',
  'mental',
  'mentally deficient',
  'meshuggah',
  'miraculous',
  'moon-struck',
  'mysterious' ]

$ npm-synonym big system program
[ 'name', 'noble', 'noble-minded', 'nubile', 'numerous' ]
[ 'Ptolemaic universe',
  'pattern',
  'peace',
  'physique',
  'place',
  'plan',
  'planning',
  'planning function',
  'plenum',
  'point of view',
  'position',
  'practice',
  'prearrangement',
  'procedure',
  'proceeding',
  'process',
  'program',
  'program of action',
  'property',
  'proportion',
  'pulsating universe' ]
[ 'Marshall Plan',
  'make a projection',
  'make arrangements',
  'manifesto',
  'mapping',
  'master plan',
  'menu',
  'method',
  'methodize',
  'methodology',
  'musical performance',
  'musical program',
  'muster',
  'muster roll' ]