English to English

verb (v)

• fix to; attach(verb.contact)

  Synonym:
  append, tack, tack on, tag on
  

  source: wordnet30
• be persistent, refuse to stop(verb.change)

  Synonym:
  hang in, hold on, persevere, persist
  

  source: wordnet30
• hold the phone line open(verb.communication)

  Example:
  Please hang on while I get your folder.
  

  Synonym:
  hold on, hold the line
  

  source: wordnet30