It means they disagreed with the majority ruling.
Justice John Marshall Harlan I
plessy vs. ferguson
The judgment of the court will include the opinions of the judges, who supported it and who dissented.
Justice Thurgood Marshall, who argued for the end of segregation in education in Brown v. Board of Education, (1954). Justice Marshall believed affirmative action for African-Americans was an important remedy to the disadvantages and oppression they'd experienced under the law for hundreds of years.
Death to those that dissented.
Lawrence v. Texas, 539 US 558 (2003)Justice Anthony Kennedy wrote the opinion of the Court, and was joined by Justices Stevens, Souter, Ginsberg, and Breyer. Justice O'Connor voted with the majority, but wrote a separate concurring opinion rather than signing Kennedy's.Chief Justice Rehnquist, and Justices Scalia and Thomas dissented.
The headmistress happily announced the planned introduction of uniforms and a school dress code, several pupils loudely dissented right there and then shouting their disapproval until they were silenced by the deputy head.
posterity
Anne Hutchinson
I dissented with the religious statement he just said because I didn't believe in it.
maxwell got ten years in prison for not giving sheppard a fair trial
The US Supreme Court vote was split 6-1; Justice Potter Stewart dissented from the majority. Justices Byron White and Felix Frankfurter took no part in the case.Case Citation:Engel v. Vitale, 370 US 421 (1962)