Keywords: skill, competence, proficiency, expertise, competency, skilled, competent, proficient, expert
Sign Definition
As a Noun
                                            1.  A combination of a natural and acquired ability (through education, experience or training) that enables you to do something well. English = skill, competence, proficiency. Informal English = know-how.
                                          
                                          
                                        
                                            2.  Special skill or knowledge. English = expertise.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To have a combination of a natural and acquired ability (through education, experience or training) that enables you to do something well. English = (be) skilled, (be) competent, (be) proficient. Informal English = have the know-how.
                                          
                                          
                                        
                                            2.  To have special skill or knowledge. English = (be) expert, have expertise.
                                          
                                          
                                         
     
                  
                      