Definition of speak out or up in English:

speak out (or up)

Express one’s opinions frankly and publicly: the government will be forthright in speaking out against human rights abuses
More example sentences
  • He spoke out publicly during colonialism and in post-colonial politics against what he considered to be injustices.
  • I just don't know what companies are doing because they're not willing to speak out publicly.
  • The vast majority of artists, mind you, don't speak out publicly at all.
Synonyms
speak publicly, speak openly, speak boldly, speak frankly, speak one's mind, sound off, spout off, go on, stand up and be counted
See parent entry: speak