The term "sweet thing" is often used to describe someone or something that is endearing, charming, or delightful. However, there are many synonyms that can be used to convey similar meanings. These include terms such as "darling," "honey," "cutie," "angel," "pet," "dear," "treasure," "gem," "bae," and "sweetheart." Each of these terms carries a slightly different connotation or level of intimacy, but all can be used to express affection or admiration for someone or something that is delightful. Whether you're describing a person or object, these synonyms can help you communicate your appreciation in a variety of contexts.