larcenist
/lärˈsenist/Definitions
1. noun
A person who steals, especially as a regular occupation
“The police arrested the larcenist after a long investigation.”
2. noun
A thief or burglar
“The larcenist broke into the store under the cover of darkness.”
3. noun
A person who commits larceny, especially in a professional or organized manner
“The larcenist was caught red-handed and was arrested immediately.”