This is the 53rd most frequent Dutch word.
grote
"Large" or "big."
In this sentence, 'grote' is an attributive adjective describing 'hond' (dog) and agrees in gender and number with the noun, taking the '-e' ending.
Mijn buurman heeft een grote hond.
My neighbor has a big dog.
'Grote' serves here as an attributive adjective modifying 'beslissing' (decision), highlighting the importance or magnitude of the decision.
Dat is een grote beslissing om te maken.
That is a big decision to make.
The word 'grote' is used as an attributive adjective for 'stad' (city), indicating its large size.