For the duration, you understand the literal meaning of any spoken language that you hear. You also understand any written language that you see, but you must be touching the surface on which the words are written. It takes about 1 minute to read one page of text.
This spell doesn't decode secret messages in a text or a glyph, such as an arcane sigil, that isn't part of a written language.
The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:
Same level, casting time, range, components, duration and dice; the text is reworded for the 2024 rules glossary.
Casting time
Action or Ritual
Range
Self
Components
V, S, M (a pinch of soot and salt)
Duration
1 hour
School
Divination
Level
1
Classes
Bard, Sorcerer, Warlock, Wizard
Tags
ritual
For the duration, you understand the literal meaning of any language that you hear or see signed. You also understand any written language that you see, but you must be touching the surface on which the words are written. It takes about 1 minute to read one page of text. This spell doesn't decode symbols or secret messages.
2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.