The kanji 化 primarily conveys the idea of "to change," "to transform," or "to become." It suggests a process of alteration, evolution, or conversion from one state or form to another. It implies a significant shift or modification.

・On-yomi (音読み): カ (ka) ・Kun-yomi (訓読み): ば（ける） (ba(keru)) - to transform, to change into

⚫︎変化（へんか） Translation: change, transformation ⚫︎文化（ぶんか） Translation: culture ⚫︎化粧（けしょう） Translation: makeup

Unfortunately, I don't have enough information to reliably comment on the correspondence with Vietnamese.

The kanji 化 is a pictophonetic compound (形声文字 - けいせいもじ). It combines the radical 匕 (hi), which originally depicted a person, with the phonetic component ヒ (hi), which is thought to provide a sound association. The combination of these elements initially suggested "to change a person" or "to transform." Over time, the meaning expanded to encompass broader concepts of change and transformation beyond the human context. The character's evolution reflects the broader human experience of witnessing and describing various forms of alteration.