Advisory may refer to: * Advisory board, a body that provides advice to the management of a corporation, organization, or foundation * Boil-water advisory, a public health directive given by government to consumers when a community's drinking water could be contaminated by pathogens * Homeroom, or advisory, is the classroom session in which a teacher records attendance and makes announcements * Significant weather advisory, a Special Weather Statement advising inclement weather is likely or imminent

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