What is a meter tag?

[vidushi-tomar-7f335103 (Vidushi Tomar)]

What is a meter tag?

[sakshi-srivastava-f3c2a4a4 (Sakshi Srivastava)]

The <meter> tag in HTML defines a scalar measurement within a known range or a fractional value. This is also known as a gauge.

Examples: Disk usage, the relevance of a query result, etc.
See visual example here