See Invisibility

Level: 2 Divination
Classes: Artificer, Bard, Sorcerer, Wizard
Casting Time: 1 action
Range: self
Components: V, S, M
Duration: 1 hour
Source: Level Up Advanced 5e

You can see invisible creatures and objects, and you can see into the Ethereal Plane. Ethereal creatures and objects appear translucent.