Broaden antonyms

What is the opposite word for Broaden?

• narrow

  expand, reduce
• decrease

  reduce, extend
• restrict

  expand, extend
• diminish

  expand, extend
• shrink

  extend
• specialize
• compress

  extend
• lessen
• abridge
• lower
• concentrate
• reduce

  expand
• tighten

  expand, reduce
• narrow down
• specialise
• simplify
• constrain
• circumscribe
• limit
• turn

  reduce