irregulars property

Implementation

final Map<String, String> irregulars = {
  'child': 'children',
  'goose': 'geese',
  'man': 'men',
  'woman': 'women',
  'tooth': 'teeth',
  'foot': 'feet',
  'mouse': 'mice',
  'person': 'people',
  'ox': 'oxen',
  'deer': 'deer',
  'sheep': 'sheep',
  'fish': 'fish',
  'series': 'series',
  'species': 'species',
  'aircraft': 'aircraft',
  'cactus': 'cacti',
  'analysis': 'analyses',
  'diagnosis': 'diagnoses',
  'ellipsis': 'ellipses',
  'phenomenon': 'phenomena',
  'criterion': 'criteria',
  'datum': 'data',
  'index': 'indices',
  'matrix': 'matrices',
  'vertex': 'vertices',
  'axis': 'axes',
  'die': 'dice',
  'bacterium': 'bacteria',
  'memorandum': 'memoranda',
  'curriculum': 'curricula',
  'formula': 'formulae',
  'addendum': 'addenda',
  'medium': 'media',
  'stratum': 'strata',
  'focus': 'foci',
  'alumnus': 'alumni',
  'genus': 'genera',
  'stimulus': 'stimuli',
  'automaton': 'automata',
  'thesis': 'theses',
  'crisis': 'crises',
  'appendix': 'appendices',
  'barracks': 'barracks',
  'headquarters': 'headquarters',
};