tōa-siū大壽

important birthday

important birthday (usually every tenth birthday after the fiftieth); coffin purchased before one's death; portrait (painting of a person)

English Wiktionary, “大壽” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%A4%A7%E5%A3%BD · confidence: Medium (Wiktionary)