Consider cost (4)
I believe the answer is:
rate
I believe this is a double definition.
'consider' is the first definition.
(thesaurus)
'cost' is the second definition.
(I've seen this before)
(Other definitions for rate that I've seen before include "Harshly rebuke" , "Merit; speed" , "Measure as of value or speed" , "Adjudge" , "Severely criticise - speed" .)