Proficient in synonyms

What is another word for Proficient in?

• skilled in
• acquainted with
• conversant with
• versed in
• at home with
• no stranger to
• au fait with
• au courant with
• up on
• in the know about
• familiar with
• experienced in
• practised in
• knowledgeable about
• informed about
• familiar
• knowledgeable of
• well-informed in
• well-informed of
• well up in
• well-informed about
• aware of
• introduced to
• conscious of
• abreast of
• on speaking terms with
• at home in
• master of
• strong in
• good hand at