Half (prefix) (4)
'half prefix' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for semi that I've seen before include "Common type of house" , "A whole house (or half?)" , "House linked to another" , "Connected house" , "Prefix denoting half" .)
'half prefix' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for demi that I've seen before include "-- Moore, actress" , "Half-sized" , "Prefix for half or part" , "Half for a dime" .)