@itemx

Use the @itemx command inside a table when you have two or more first column entries for the same item, each of which should appear on a line of its own. Use @itemx for all but the first entry; @itemx should always follow an @item command. The @itemx command works exactly like @item except that it does not generate extra vertical space above the first column text.

For example,

     @table @code
     @item upcase
     @itemx downcase
     These two functions accept a character or a string as
     argument, and return the corresponding upper case (lower
     case) character or string.
     @end table
     

This produces:

upcase

downcase

These two functions accept a character or a string as argument, and return the corresponding upper case (lower case) character or string.

(Note also that this example illustrates multi-line supporting text in a two-column table.)