admonitory speech; words of admonition
Formal term for a speech or remarks that instruct, warn, or give guidance, often in educational or official settings.
校長先生が入学式で訓辞を述べた。
The principal delivered an admonitory speech at the entrance ceremony.
訓辞 (same reading as 訓示) is a formal ceremonial address of exhortation, while 訓示 refers to concrete instructions or directions given by a superior in daily business.
Compound of 訓 (instruction, admonition) and 辞 (words, speech). The exact historical derivation is uncertain, but the spelling is conventionally associated with formal admonitory remarks.