practitioner /prak-tishˈə-nər/

1. Someone who is in practice, esp in medicine
2. Someone who practises or goes in for something specified

• keepable
• keep a calm sough
• keep a good house
• keep an act
• keep a quarter
• keep a secret
• keep a stiff upper lip
• keep a straight bat
• keep a straight face
• keep at
• keep at bay
• keep a term
• keep a tight rein
• keep a tight rein on
• keep back
• keep body and soul together
• keep cave
• keep company
• keep counsel
• keep count
• keep dark
• keep down
• keep early hours
• keeper
• keeperless