Bajo vs. reducido
The Spanish words bajo and reducido can both be translated to mean low in English, but they are used in different contexts.
Bajo
A1Bajo is commonly used to describe something that is physically low, or to reflect levels such as prices, volume, or altitude.
El precio de la gasolina está muy bajo.
(The price of gasoline is very low.)
El edificio es muy bajo.
(The building is very low.)
El volumen de la música está bajo.
(The volume of the music is low.)
El avión está volando a una altitud baja.
(The airplane is flying at a low altitude.)
Reducido
B1Reducido emphasizes the idea of reduction or decrease and is often used when something has been lowered in quantity, size, or capacity as a result of some action or process.
Tenemos un presupuesto reducido este año.
(We have a reduced budget this year.)
El grupo de estudiantes es reducido.
(The group of students is small.)
Entendemos las limitaciones del proyecto debido al presupuesto reducido.
(We understand the project's limitations due to the reduced budget.)
La porción de comida es reducida.
(The food portion is small.)
Summary
Both bajo and reducido can mean low, but bajo refers to something physically low or at a lower level, while reducido implies that something has decreased from an original amount.