Bullying is “offensive, intimidating, malicious or insulting behaviour, an abuse or misuse of power through means that undermine, humiliate, denigrate or injure the recipient”.
Mae rheolaeth drwy orfodaeth yn weithred neu'n batrwm o weithredoedd o ymosod, bygythiadau, bychanu a dychrynu neu gam-drin arall a ddefnyddir i niweidio, cosbi neu ddychryn y dioddefwr.