For a specific duration, you do see the invisible creatures and also the objects like if they were visible, and also you can see into an Ethereal Plane. Actually, the Ethereal creatures and also the objects would be appear ghostly and translucent too.
Attributes Of See Invisibility Spell 5E
|Casting Time||1 action|
|Classes||Bard, Sorcerer, Wizard|
|Components||V S M|
|Material||A pinch of talc and a small sprinkling of powdered silver|