Individual plurilingualism: 1  For the individual, plurilingualism is known to produce cognitive advantage (Bialystok, 2001) 2  It improves performance on a range of tasks related to educational attainment (Ricciardelli, 1992)  It facilitates the acquisition of literacy (Kenner, 2004)
Adversary definition, a person, group, or force that opposes or attacks; opponent; enemy; foe. See more.
Nemesis is a stronger word than enemy. Enemy is an unfriendly or hostile person. Nemesis is an avenging force. In classical mythology Nemesis was the goddess of retribution. She punished both hubris (false pride) and wrongdoing.