Synonyms for Disrupt: agitate, bollix, confuse, disarray, discombobulate, discompose, disorder, disturb, mess up, mix up, muck up, psych out, put off, rattle, rattle one's cage, rummage, screw up,...
Both are correct.
Synonym means: a word having the same or nearly the same meaning as another in the language. Definition means: the act of defining or making definite, distinct, or clear / the formal statement of the...
The word no can be replaced in some contexts by none, negative, zero, or nothing.
He is a pronoun. The only synonym it has is to use the name of the person it refers to, i.e., "He is short." "John is short."