This is the 10590th most frequent Turkish word.
bırakmalı
"Should/must leave" or "should/must let go."
Here, 'bırakmalı' is used to express obligation or necessity for ceasing an action, indicated by its grammatical form suggesting a suggestion or advice.
Sigara içmeyi bırakmalı.
He/she/it should quit smoking.
In this sentence, 'bırakmalı' implies that an action needs to be stopped for the sake of a beneficial outcome, connecting moral or ethical implication to the necessity.
Doğa zarar görmemesi için plastik kullanımını bırakmalı.
We should stop using plastic to prevent harm to nature.
Here, 'bırakmalı' is advising cessation of a particular manner of behavior, specifically relating to personal improvement or professional conduct.