Meaning of “toast” - Learner’s Dictionary

toast

noun uk us /təʊst/
BREAD [ U ]

A2 bread that has been heated to make it brown:

a slice of toast
DRINK [ C ]

a time when people lift their glasses and drink because they want someone to be successful, happy, etc:

At the wedding, there was a toast to the happy couple.

(Definition of “toast noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)