Kittening refers to the process of giving birth to a litter of kittens. However, there are many synonyms that can also be used to describe this process. Birthing, whelping, parturition, delivering, and giving birth are all synonyms of kittening. These words express the same meaning but with different connotations. They all refer to the act of bringing new life into the world. While kittening may be the most commonly used term in relation to the birth of kittens, using synonyms can add variety and color to your writing. So, whether you're writing a short story or a research paper, consider using one of these synonyms to describe the birth of kittens.