所

1. Concrete noun: A place, location, site, or spot.

2. Classifier (numerary adjunct): Used for buildings, houses, or rooms.

Structural Nominalizer: When preceding a verb or adjective (`所 + Verb`), it functions as a nominalizer denoting "that which is [verbed]" or "the thing that [subject] does." This manifests in several ways:

• Relative Clause: Functions similarly to English relative pronouns such as "what," "which," or "that which."
• Patient Marking: Often marks the recipient of an action rather than the agent (e.g., 所見, "that which is seen").
• Object Shift: Can mark the object of an action shifted forward for emphasis or structural necessity.

Noun vs. Nominalizer: A primary ambiguity exists between the concrete noun ("place") and the grammatical marker.

• If followed by a verb or adjective, it likely functions as a nominalizer.
• If followed by a preposition or location-marker, it is typically the concrete noun.

Fanqie reading: 踈舉

Tang-period reading: *shriǔ

When translating the nominalizer function, avoid the literal "the place where..." unless the context is explicitly spatial. Depending on syntax, it is often more accurate to render the following verb as a noun or to employ a passive construction in English.