Words similar to know

Example sentences for: know

How can you use “know” in a sentence? Here are some example sentences to help you improve your vocabulary:

We know that water is H2O and (if we are sufficiently dyspeptic) that baking soda is NaHCO3; and it is generally agreed that uranium is quite heavy and that certain isotopes of it can be manipulated in such a way as to make a very big bang.
Programs and films that are broadcast on television after ten o'clock in the evening are no longer censored--even in the United States--for mentions of shit and piss , though fuck , which can occasionally be heard on British television, has not, as far as I know, made it to the American media.
Reporters rely on neighbors to flesh out the characters of killers, but what, really, do neighbors know?
I don't know what Emily Post thinks.
-- I don't know about Bosnia or Botswana, but for the South Bronx I suggest the 2 train on the IRT.