Th meanes

Answer 1

The <th> tag defines a header cell in an HTML table.
An HTML table has two kinds of cells:
Header cells - contains header information (created with the <th> element) Standard cells - contains data (created with the <td> element)
The text in <th> elements are bold and centered by default.
The text in <td> elements are regular and left-aligned by default.

Answer 2

<tr>creates a row and <th>is placed inside tr tag
th=table header

Answer 3

Table Heading