practicer

transitive verb practiced, practicing

1. to do or engage in frequently or usually; make a habit or custom of: to practice thrift
2. to do repeatedly in order to learn or become proficient; exercise or drill oneself in: to practice batting
3. to put into practice; specif.,
   1. to use one's knowledge of; work at, esp. as a profession: to practice law
   2. to observe, or adhere to (beliefs, ideals, etc.): to practice one's religion
4. to teach or train through practice; exercise

intransitive verb

1. to do something repeatedly in order to learn or acquire proficiency; exercise or drill oneself: to practice on the organ
2. to put knowledge into practice; work at or follow a profession, as medicine, law, etc.
3. Archaic to scheme; intrigue

noun

1. the act, result, etc. of practicing; specif.,
   1. a frequent or usual action; habit; usage: to make a practice of being early
   2. a usual method or custom; convention: the practice of tipping for services
2. 1. repeated mental or physical action for the purpose of learning or acquiring proficiency
   2. a session of engaging in such action: cheerleading practice
   3. the condition of being proficient or skillful as a result of this: to be out of practice
3. the doing of something as an application of knowledge: the practice of a theory
4. 1. the exercise of a profession or occupation: the practice of law
   2. a business based on this, often regarded as a legal property: to buy another's law practice
5. Archaic intrigue, trickery, a scheme, etc.
6. Law the various procedures involved in legal work, in and out of courts