This is the 1821st most frequent Swedish word.
gratis
Free of charge.
In this sentence, 'gratis' means 'free' as in 'without cost', used as an adjective to describe the coffee being offered.
De erbjuder gratis kaffe till alla kunder.
They offer free coffee to all customers.
Here, 'gratis' is used adverbially, meaning 'without payment' or 'without cost', describing how the ticket was obtained.
Jag fick biljetten gratis eftersom jag hjälpte till att organisera evenemanget.
I got the ticket for free since I helped organize the event.
In this example, 'gratis' modifies the pronoun 'något' ('something') to imply that the thing received is without charge or payment.