1 tr. & intr. bring or come to an end.
2 tr. (often foll. by from, or that + clause) infer (from given premisses) (what did you conclude?; concluded from the evidence that he had been mistaken).
3 tr. settle, arrange (a treaty etc.).
4 intr. (usu. foll. by to + infin.) esp. US decide.
Etymology: ME f. L concludere (as com-, claudere shut)
Useful english dictionary. 2012.