This is the 1104th most frequent German word.
leichter
"Leichter" means "easier" or "lighter" in English.
Here, 'leichter' is used as an adjective in the comparative form to describe the weight of the luggage, indicating it has less weight now than before.
Das Gepäck ist jetzt leichter als vorher.
The luggage is now lighter than before.
In this sentence, 'leichter' is used metaphorically as an adjective in the comparative form to compare the effort required for two opposite actions.
Es ist leichter, den Berg hinunterzuklettern als hinaufzusteigen.
It is easier to climb down the mountain than to climb up.
Here, 'leichter' is used in a figurative sense to express a feeling of relief or being less burdened as a result of understanding or clarification.