A "hen do" is a term commonly used in the UK and Ireland for a pre-wedding celebration for a bride-to-be. However, there are numerous synonyms for this term. In the US, it's commonly referred to as a bachelorette party. Other synonyms include a bridal shower, a girls' night out, a hen party, a bride's night out, and a hens' night. Other countries have their own unique terms for this event. For example, in Australia and New Zealand, it's called a hens' party, while in South Africa, it's referred to as a kitchen tea. Whatever term is used, the goal is the same - to celebrate the upcoming wedding and have a fun time with friends.