English to English

verb (v)

• be persistent, refuse to stop(verb.change)

  Synonym:
  hang in, hang on, hold on, persist
  

  source: wordnet30
• To persist in any business or enterprise undertaken; to pursue steadily any project or course begun; to maintain a purpose in spite of counter influences, opposition, or discouragement; not to give or abandon what is undertaken.(verb)

  source: webster1913