in

in, on

preposition Rare #47,173
in, on Used mainly in fixed expressions (e.g., "in vivo", "in situ", "in extremis"); in everyday Spanish this is not a native preposition.
SP: El estudio se realizó in situ.
EN: The study was carried out on site.

Conocí a Tom in Boston.

I met Tom in Boston.

In Choka.

In Choka.

— Whistle: El silbido del mal (2026)

Este camión se diseñó con la comodidad del conductor in mente.

This truck was designed with the driver's comfort in mind.

Compraron una casa in Chiba.

They bought a house in Chiba.

— Audition (2000)