verb
-cides; -cided; -ciding
to make a choice about (something) :to choose (something) after thinking about it [+ obj]
to choose whether or not to believe (something) after thinking about it :to reach a conclusion about (something) because of evidence [+ obj]
to cause (something) to end in a particular way :to determine what the result of (something) will be [+ obj]
law :to end (a court case) in a particular way :to make a judgment in a court of law [+ obj]
decide on/upon
[phrasal verb]
decide on/upon (something) :to choose (something) after thinking about the possible choices
deciding factor
something that causes you to make a particular decision
something that causes something to end a particular way