Definition of lawyer noun from the Oxford Advanced American Dictionary

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lawyer

noun
/ˈlɔɪər; ˈlɔyər/
 
 
a person who is trained and qualified to advise people about the law and to represent them in court, and to write legal documents
Usage noteUsage note: lawyersLawyer is a general term for a person who is qualified to advise people about the law, to prepare legal documents for them, and/or to represent them in a court of law.Attorney is a more formal word used for a lawyer and is used especially in job titles: district attorneyCounsel is the formal legal word used for a lawyer who is representing someone in court: counsel for the prosecutionAfter a lawyer passes the exam allowing him or her to represent someone in court in a particular state, you say that he or she has passed the bar or is a member of the bar in that state.