en esa área

in that area

→ en
phrase Rare #40,458
in that area Can refer either to a physical area or to a field of study, work, or expertise. Although área is feminine, it uses the feminine demonstrative esa: en esa área.
SP: Mi hermana tiene mucha experiencia en esa área.
EN: My sister has a lot of experience in that area.

Tengo una amiga que trabaja en esa área.

I have a friend who works in that area.

— Audition (2000)

Me preguntó si tenía experiencia en esa área, y le dije que no.

He asked me if I had experience in that area, and I told him no.

Tom es una autoridad en esa área.

Tom is an authority in that area.

No entres en esa área.

Don’t enter that area.

Es arriesgado que entres solo en esa área.

It's risky to go into that area alone.