A reprisal is something violent or harmful that you do to punish someone for something bad or unpleasant that they did to you.
A dispersal of something is its scattering or distribution over a wide area.
When someone offers an appraisal of something, they indicate the value or worth of it.
A ritual is an established and formal behavior, such as a religious ceremony or graduation from high school or college.
A signal is a sound or action that has a special meaning to another person to whom it is given or sent.
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