What does "fend" mean?

Additional senses

1. 2.To keep off; to prevent from entering or hitting; to ward off; to shut out; -- often with off; as, to fend off blows. With fern beneath to fend the bitter cold. Dryden. To fend off a boat or vessel (Naut.), to prevent its running against anything with too much violence.
2. 3.To act on the defensive, or in opposition; to resist; to parry; to shift off. The dexterous management of terms, and being able to fend . . . with them, passes for a great part of learning. Locke.