合 (hé): To join, unite, or combine. It signifies togetherness.
家 (jiā): Family or home. This is the core subject of the phrase.
欢 (huān): Happy, joyous, or cheerful. It describes an active, celebratory kind of happiness.
乐 (lè): Joy, gladness, or delight. This reinforces the feeling of happiness, often implying a more peaceful, contented state.
When combined, “合家欢乐 (hé jiā huān lè)” literally translates to “United Family, Joyous and Happy.” The characters paint a clear picture: the family comes together (合家) and as a result, experiences shared joy and happiness (欢乐).