Outward
Part of speech: adverb
Definition: toward the outside; away from the centre
Part of speech: adjective
Definition: outer; located towards the outside
Example sentence: Great art is the outward expression of an inner life in the artist, and this inner life will result in his personal vision of the world.
Outwards
Part of speech: adverb
Definition: From the interior part; in a direction from the interior toward the exterior; out; to the outside; beyond; off; away; as, a ship bound outward.