brain – el cerebro
(Pronounced seh-reh-broh)
To remember that brain is pronounced seh-reh-broh (cerebro) in Latin American Spanish, use the following mnemonic:
The giant brain was celebrating until the referee said he'd broken (cerebro) the rules.

Cerebro is masculine, so it's el cerebro. Imagine a brain that looks like an elephant.

Examples of celebrar (celebrate) in a sentence
Vamos a celebrar tu cumpleaños con una fiesta grande.
(We are going to celebrate your birthday with a big party.)
¿Cómo quieres celebrar el año nuevo?
(How do you want to celebrate the new year?)
Mi familia siempre se reúne para celebrar las fiestas.
(My family always gets together to celebrate the holidays.)