Size, extent (9)
There are a few possibilities for this:
dimensions
(Other definitions for magnitude that I've seen before include "(A star's) brightness" , "Relative importance" , "Eating mud (anag.)" , "Dimensions" , "Largeness or size" .)
I believe this is a double definition.
'size' is the first definition.
(I know that size can be written as dimension)
'extent' is the second definition.
(thesaurus)
(Other definitions for dimension that I've seen before include "Length or breadth, say" , "size" , "Proportion" , "measure" .)
I believe this is a double definition.
'size' is the first definition.
(thesaurus)
'extent' is the second definition.
(thesaurus)
(Another definition for dimensions that I've seen is " Length, breadth and height".)