Blend 1009 (3)
I believe the answer is:
mix
I believe this is a double definition.
'blend' is the first definition.
(I know that blend can be written as mix)
'1009' is the second definition.
(MIX is 1009 in Roman numerals )
(Other definitions for mix that I've seen before include "Blend or socialise" , "= 1,009 (L.)" , "Amalgamate, blend" , "Associate" , "Stir or blend" .)