deduce If you deduce something or deduce that something is true, you reach that conclusion because of other things that you know to be true.
induce To induce a state or condition means to cause it. If you induce someone to do something, you persuade or influence them to do it.
reduce If you reduce something, you make it smaller in size or amount, or less in degree.
seduce If something seduces you, it is so attractive that it makes you do something that you would not otherwise do.
produce If you produce something, you make or create it.