The Y-chromosome is a key component of human genetics, especially in determining male sex. However, there are alternative terms that can be used instead of Y-chromosome. For instance, it is sometimes referred to as the "male chromosome" or the "Y chromosome". Other synonyms include the "MSY", which stands for male-specific region of the Y chromosome, and the "SRY", which is the sex-determining region of the Y chromosome. Additionally, "Y-DNA" is a common term used in genetic genealogy to refer to the genetic material inherited through the Y-chromosome. Overall, there are various terms used to describe the Y-chromosome, highlighting its importance in human biology.