Jill is a female given name that has been in use for centuries. It is a short form of Jillian, which itself is a variant of Julian. While Jill may not have as many synonyms as other names, there are some alternatives that can be used. Some of the synonyms for Jill include Gill, Jilly, Jillsy, and Gillian. However, these are not as commonly used as Jill. The name Jill is often associated with sweetness, kindness, and a gentle nature. It is a timeless name that is still popular today, and its simplicity makes it easy to pronounce and remember.