The HTML <dt> tag is used to define the start of a term in a definition list. A definition list is similar to other lists but in a definition list, each list item contains two entries; a term and a description.
Example
You can try to run the following code to define the start of a term in a definition list using the <dt> tag −
<!DOCTYPE html> <html> <head> <title>HTML dt Tag</title> </head> <body> <dl> <dt>Definition List</dt> <dd>A list of terms and their definitions/descriptions.</dd> <dt>JAVA</dt> <dd>Tutorial on JAVA Programming Language.</dd> <dt>Android</dt> <dd>Tutorial on Android Operating System.</dd> </dl> </body> </html>