This is the 425th most frequent Czech word.
těžké
"Heavy" or "difficult."
The word "těžké" is used here as an adjective to describe the weight of the luggage, indicating it is heavy.
Těžké zavazadlo zůstalo na místě.
The heavy luggage remained in place.
In this sentence, "těžké" functions as an adjective, metaphorically describing the decision as challenging or hard to make.
Těžké rozhodnutí leželo před námi.
A difficult decision lay ahead of us.
Here, "těžké" is used metaphorically to express emotional heaviness or sorrow.