A hand at is a phrase that refers to someone who is skilled or proficient at doing something. There are many synonyms for this phrase, such as adept, skilled, proficient, talented, capable, and experienced. These words can be used interchangeably with a hand at to describe someone who has a particular talent or skill. Other synonyms that might also describe someone who is a hand at include expert, masterful, knowledgeable, and competent. Whether you are describing a musician, athlete, artist or writer, using synonyms for a hand at can add depth and emphasis to the description of someone's skills.