This is the 902nd most frequent Chinese word.
满
"满" means "full" or "filled."
In this sentence, '满满' emphasizes a complete state of being full, typically used as an adverbial phrase to describe emotions or situations.
他的信心满满，充满了斗志。
He is full of confidence and filled with determination.
Here, '满' functions as an adjective to describe the state of the cup being completely filled with a liquid.
杯子里倒满了水。
The cup is filled to the brim with water.
In this usage, '满' is used metaphorically in '满怀,' combining with '期待' to convey the idea of being emotionally filled with excitement or expectation.