This is the 462nd most frequent Czech word.
chtějí
"chtějí" = "they want"
In this sentence, 'chtějí' is a verb derived from 'chtít', indicating a wish or desire by the third person plural subject to perform the action stated after it.
Chtějí jít do parku.
They want to go to the park.
Here, 'chtějí' is again used as a verb for the third person plural subject, expressing their desire for an object.
Děti chtějí zmrzlinu.
The children want ice cream.
In this case, 'chtějí' expresses the intent of the plural subject to perform a beneficial action towards others.