RELATED WORDS
PARAPHRASING
1) to arrive at (knowledge, a theory etc) by reasoning (deduce)
2) to beat (a person) with a stick, whip etc; to defeat (a person, team etc) in a contest; to arrive at a decision or agreement after a lot of discussion (thrash)
to achieve (the usual word)
achieve, accomplish
to reach an opinion (from facts or reasoning)
conclude