How to Say "limit" in Spanish
The most common Spanish word for “limit” is “límite” — use this word when referring to a specific restriction, a deadline, or a maximum amount that is not allowed to be exceeded..
límite
Examples
Hay un límite de velocidad en esta carretera.
There is a speed limit on this road.
Examples
El término para entregar la tarea es mañana.
The deadline to hand in the homework is tomorrow.
máximo
Examples
El número máximo de asistentes es 100.
The maximum number of attendees is 100.
techo
/TAY-cho//ˈte.tʃo/

Examples
El gobierno impuso un techo a los gastos públicos.
The government imposed a ceiling on public spending.
Han puesto un techo al precio de la gasolina.
They have put a cap on the price of gasoline.
Siento que he tocado techo en esta empresa; ya no puedo ascender más.
I feel like I've hit the ceiling in this company; I can't be promoted any further.
Figurative Use
When 'techo' is used figuratively, it refers to the highest point or limit you can reach, often in a career or economic situation.
Using 'Límite' vs. 'Techo'
Mistake: “Sometimes learners use 'límite' when 'techo' sounds more idiomatic for a maximum level.”
Correction: Use 'techo' for established caps (like salary or debt) or reaching a personal peak. Example: 'Hemos llegado al techo de la deuda' (We've reached the debt ceiling).
frontera
frohn-TEH-rah/fɾonˈteɾa/

Examples
Las fronteras de la exploración espacial se expanden constantemente.
The frontiers of space exploration are constantly expanding.
Los científicos están empujando las fronteras del conocimiento humano.
The scientists are pushing the limits of human knowledge.
Su arte se encuentra en la frontera entre la pintura y la escultura.
His art is found on the boundary between painting and sculpture.
Figurative Use
In this abstract sense, 'frontera' often appears in the plural ('las fronteras') when talking about the limits of an entire field, like science or art.
perímetro
Examples
La policía acordonó el perímetro del edificio.
The police cordoned off the perimeter of the building.
Confusing 'límite' with 'término'
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