As a Noun: 1. The know-how a person has at a particular job or task because they have done it for a long time. English = experience, familiarity. 2. The knowledge and ability that enables you to do something well. English = skill. 3. An experience is something that you do or that happens to you, especially something important that affects you. 4. As a Verb or Adjective: 1. To have a lot of know how and familiarity with a job or task because you have done it for a long time. English = (be) experienced, (be) familiar with. 2. To have the knowledge and ability to do something well which you acquire through training and experience. English = (be) skilled.