See Invisibility

2nd-level divination

Casting Time: 1 action
Range: Self
Components: V, S, M
Duration: 1 hour

Material: A dash of talc and a small amount of silver powder.

For the duration of the spell, you see invisible creatures and objects as if they were visible, and you can see through Ethereal. The ethereal objects and creatures appear ghostly translucent.

Bard · Sorcerer · Wizard

On these spell lists

Bard spells
Sorcerer spells
Wizard spells
2nd-level spells
Divination spells

Other 2nd-level spells for the same classes

2nd level: 2Detect ThoughtsDivination · 1 action
2nd level: 2Locate ObjectDivination · 1 action
2nd level: 2Locate Animals or PlantsDivination · 1 action
2nd level: 2Hold PersonEnchantment · 1 action
2nd level: 2Misty StepConjuration · 1 bonus action
2nd level: 2InvisibilityIllusion · 1 action

Questions

What level is See Invisibility?

See Invisibility is a 2nd-level divination spell.

Which classes can cast See Invisibility?

Bard, Sorcerer and Wizard have See Invisibility on their spell list.

Does See Invisibility need concentration?

No. Its duration is 1 hour.