This is the 3277th most frequent Catalan word.
tiri
"Tiri" is the present subjunctive form of the verb "tirar," meaning "to throw" or "to shoot."
In this sentence, "tiri" is used as a command (imperative mood) addressed formally to direct someone not to discard the paper improperly.
No tiri aquest paper a terra.
Don't throw this paper on the ground.
Here, "tiri" serves as a subjunctive verb form, indicating an action that is contingent upon the act of throwing the ball.
Quan tiri la pilota, corri cap a la base.
When you throw the ball, run to the base.
In this context, "tiri" is a subjunctive present tense verb expressing hope regarding the action of throwing within the framework of the event.