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es el mayor

is the biggest

→ ser
phrase Uncommon #11,268
is the biggest Depending on context, mayor can also mean “greatest” or “oldest.”
SP: Este es el mayor edificio de la ciudad.
EN: This is the biggest building in the city.

Él es el mayor de los dos.

He is the older of the two.

Argelia es el mayor proveedor de gas de España.

Algeria is Spain’s largest gas supplier.

El Sahara es el mayor desierto del mundo.

The Sahara is the largest desert in the world.

Él es el mayor.

He is the oldest.

— Gángster Americano (2007)

Es el mayor de mi grupo.

He is the oldest in my group.

Él es el mayor Warren.

He is the older Warren.

— Lagaan, érase una vez en la India (2001)

Grecia es el mayor enemigo de Albania.

Greece is Albania's biggest enemy.

Es el mayor hallazgo de la historia.

It is the greatest discovery in history.

— El Quinto Elemento (1997)

San Pablo es el mayor productor de huevos del país.

San Pablo is the country's largest egg producer.

México es el mayor país hispanohablante.

Mexico is the largest Spanish-speaking country.

Él es el mayor de dos chicos.

He is the older of two boys.

Vic es el mayor fan de los Zeppelin.

Vic is the biggest Zeppelin fan.

— Casi famosos (2000)

Hamburgo es el mayor puerto de Alemania y el tercero mayor de Europa.

Hamburg is Germany’s largest port and the third largest in Europe.