This is the 13803rd most frequent Turkish word.
lacivertliler
"People associated with dark blue" (often refers to a sports team wearing dark blue).
In this sentence, 'lacivertliler' is used to refer to a sports team whose symbolic color is navy blue.
Lacivertliler dün akşam oynanan maçta galip geldi.
The Navy blue team won last night's match.
Here, 'lacivertliler' is used as a nickname for a group or organization identified by the color navy blue.
Konseri lacivertliler düzenliyordu ve katılım oldukça yoğundu.
The concert was being organized by the navy blue group, and the attendance was quite high.
This usage generalizes 'lacivertliler' to signify a collective of people associated with the navy blue color.