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1. Having the power or quality of deciding
   - deciding, determinant, determinative

1. Establish after a calculation, investigation, experiment, survey, or study
   - find, find out, ascertain
    
2. Shape or influence; give direction to
   "experience often determines ability"
   - shape, mold [N. Amer], influence, regulate, mould [Brit, Cdn]
    
3. Fix conclusively or authoritatively
   - set
    
4. Decide upon or fix definitely
   - specify, set, define, fix, limit
    
5. Reach, make, or come to a decision about something
   - decide, make up one's mind
    
6. Fix in scope; fix the boundaries of
   "the tree determines the border of the property"
    
7. Settle conclusively; come to terms
   - settle, square off, square up
    
8. Find out, learn, or determine with certainty, usually by making an inquiry or other effort
   - check, find out, see, ascertain, watch, learn

See also: decisive, determinant, determination, determiner

Type of: cause, choose, conclude, define, delimit, delimitate, delineate, do, make, pick out, resolve, select, specify, take