Keywords: apply, applied, application
Sign Definition
As a Noun
                                            1.  The practical use to which something, especially a theory or subject of study, can be put. English = application.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To be relevant to a particular person or situation. English = apply.
                                          
                                          
                                        
                                            2.  Of a rule, system, or skill, to use it in a particular situation or activity. English = apply.
                                          
                                          
                                        
                                            3.  Of a subject of study, to have a practical use. English = (be) applied.