Dictionary definition · reckon
verb
- expect, believe, or suppose"I imagine she earned a lot of money with her new novel"
- judge to be probable
- deem to be"She views this quite differently from me"
- make a mathematical calculation or computation
- have faith or confidence in"you can count on me to help you any time"
- take account of"You have to reckon with our opponents"
Source: Open English WordNet (CC BY 4.0).