Eclipse
Part of speech: noun
Definition: An astronomical alignment in which a planetary object (for example, the Moon) comes between the sun and another planetary object (for example, the Earth), resulting in a shadow being cast by the middle object onto the other object. A seasonal state of plumage in some birds, notably ducks, adopted temporarily after the breeding season and characterised by a dull and scruffy appearance.
Part of speech: verb
Definition: Of astronomical bodies, to cause an eclipse. To overshadow; to be better or more noticeable than.
Example sentence: An eclipse is one phenomenon that is actually more impressive from the ground.
Occultation
Part of speech: noun
Definition: An astronomical event that occurs when one celestial object is hidden by another celestial object that passes between it and the observer when the nearer object appears larger and completely hides the more distant objectDescribes the state of an Imam that has been hidden by Allah. (see Muhammad al-Mahdi)