syntymäpäiviään

Syntymäpäiviään is a Finnish word that translates to "their birthday" or "his/her birthday." It is the third-person possessive form of the word syntymäpäivä, which means birthday. The word is formed by combining syntymä (birth) and päivä (day).

In Finnish culture, birthdays are generally celebrated. The specific customs can vary, but often involve family and friends gathering to mark the occasion. Gifts are common, and a birthday cake is a frequent feature of celebrations. The person celebrating their birthday may be honored with songs, such as "Paljon onnea vaan," the Finnish equivalent of "Happy Birthday to You."

The possessive suffix in "syntymäpäiviään" indicates that the birthday belongs to someone in the third person, either singular or plural. For example, "Hän juhlii syntymäpäiviään" means "He/She celebrates his/her birthday." If referring to multiple people, it would translate as "They celebrate their birthdays." The word is used in everyday conversation and writing to refer to the birthdays of individuals or groups. It is a fundamental part of discussing personal milestones and celebrations in the Finnish language.