determination

noun

1
the act of determining the properties of something, usually by research or calculation
the determination of molecular structures
2
the act of making up your mind about something
the burden of decision was his
he drew his conclusions quickly
3
the quality of being determined to do or achieve something; firmness of purpose
his determination showed in his every movement
he is a man of purpose
4
deciding or controlling something's outcome or nature
the determination of grammatical inflections
5
a position or opinion or judgment reached after consideration
a decision unfavorable to the opposition
his conclusion took the evidence into account

Also useful for “determination”:Crossword— A long fill for tough grids