Limit oneself to synonyms

What is another word for Limit oneself to?

• train

  concentrate on specific area
• pursue

  concentrate on specific area
• practice

  concentrate on specific area
• be into

  concentrate on specific area
• develop oneself in

  concentrate on specific area
• go in for
• have a weakness for
• practice exclusively
• study intensively
• work in
• specialize
• practise
• specialise