Enjoyment, n.
1. The condition of enjoying anything; pleasure or satisfaction, as in the possession or occupancy of anything; possession and use; as, the enjoyment of an estate.
2. That which gives pleasure or keen satisfaction. The hope of everlasting enjoyments. Glanvill.
Syn. -- Pleasure; satisfaction; gratification; fruition; happiness; felicity; delight.
Shades of meaning
Fernald has no entry of its own for enjoyment; he lists it under entertainment, happiness.
Where he writes about it:
Amusement is a form of enjoyment, but enjoyment may be too keen to be called amusement. — from entertainment
Enjoyment is more positive, always implying something to be definitely and consciously delighted in; a sick person finds comfort in relief from pain, while he may be far from a state of enjoyment. — from happiness
Happiness is more positive than comfort, enjoyment, or satisfaction, more serene and rational than pleasure; pleasure is of necessity transient; happiness is abiding, and may be eternal; thus, we speak of pleasures, but the plural of happiness is scarcely used. — from happiness