"Kent hi" is a Welsh phrase which means "knew she". If you're looking to vary your vocabulary and use synonyms instead, you could try using phrases like "was aware", "had knowledge" or "understood". Alternatively, single word synonyms could include terms like "cognizant", "informed", or "familiar". It's always useful to have a range of synonyms in your repertoire, as it allows you to express yourself more precisely and effectively. By using alternative words and phrases, you can add nuance and depth to your writing or conversation, helping to communicate your ideas in a more impactful way.