Shirt-sleeve refers to the part of a shirt that covers the arm from the shoulder to the wrist. However, in writing, it may become repetitive and monotonous to use the same term repeatedly. Hence, there are several synonyms that can be used interchangeably for shirt-sleeve. Some of them include garment sleeve, blouse sleeve, top sleeve, shirt cuff, and shirt arm. Other options include shirttail, shirt armhole, cufflink, shirt wrist, and shirt sleevelet. In summary, knowing synonyms for the word shirt-sleeve can add diversity and originality to your writing.