word power (1)

1, self: ego
egoist
egotist
egocentric
egomaniac/al

2, other: alter
altruistic
alternate
alteration-a change, making into something other
altercation-a heated verbal dispute, a violent disagreement, having other plans, ideas or opinions than the other side of the argument.  (use of "altercation" in wsj.com)

3, redact
a, to put (an idea, a story) in writing; frame
b, to select or adapt (as by obscuring or selecting sensitive info) for publication or release; edit
c, to obscure or remove (text) from a document prior to release