conducive
able to bring about or be suitable for
conduct
to control or manage or to behave a certain way
confide
to share something secretive with someone
confine
put limits on; to restrict
consensus
overall agreement
contemplate
to think deeply about
contend
to maintain or assert (an opinion)
contradict
to be in contrast with
controversial
adj: highly debatable and causing contention
conventional
abiding by accepted standards