The kanji character 農 primarily means "agriculture," "farming," or "farming activities." It encompasses the cultivation of crops, raising of livestock, and the overall practice of producing food and other agricultural products. It suggests the work involved in land preparation, planting, harvesting, and the management of a farm.

・On-yomi (音読み): ノウ (nou) ・Kun-yomi (訓読み): None (This kanji is usually used as a component of compound words, and does not have a common standalone kun-yomi reading.)

⚫︎農業 (nougyou) Translation: Agriculture, farming. ⚫︎農家 (nouka) Translation: Farmer, farming family. ⚫︎農作物 (nousakubutsu) Translation: Crops, agricultural products.

I am sorry, but I do not have access to a reliable source of information about the correspondence between the origin of the kanji 農 and Vietnamese. Therefore, I cannot provide an explanation for the correspondence with the user's native language.

The kanji 農 is a phono-semantic compound (形声文字, けいせいもじ). The semantic component is 辰 (shin), which represents a morning star or time, originally referring to tools used in farming. The phonetic component is 曲 (kyoku/maga-), which indicates the sound. Together, they depict the act of farming at dawn, marking the beginning of the day's work. The character's evolution shows the gradual simplification and standardization of these components.