Invisibility  [two-actions] Spell 2

Illusion Manipulate Subtle 
Source Player Core pg. 339
Range touch; Targets 1 creature
Duration 10 minutes

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Illusions bend light around the target, rendering it invisible. This makes it undetected to all creatures, though the creatures can attempt to find the target, making it hidden to them instead. If the target uses a hostile action, the spell ends after that hostile action is completed.

Paizo Clarification

Invisibility follows the rules of the invisible condition. The second sentence summarizes them but doesn't cover every instance, such as you being hidden to creatures observing you when you become invisible instead of being undetected to them.

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Heightened (4th) The spell lasts 1 minute, but it doesn't end if the target uses a hostile action.

Translate  [two-actions] Spell 2

Concentrate Manipulate 
Source Player Core pg. 363
Range 30 feet; Targets 1 creature
Duration 1 hour

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The target can understand the meaning of a single language it is hearing or reading when you Cast the Spell. This doesn't let it understand codes, language couched in metaphor, and the like (subject to GM discretion). If the target can hear multiple languages and knows that, it can choose which language to understand; otherwise, choose one of the languages randomly.

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Heightened (3rd) The target can also speak the language.
Heightened (4th) You can target up to 10 creatures, and targets can also speak the language.