Freebie (noun)

1. Something that is given away for free.
2. A complimentary item or service given away as a promotional offer or bonus.

Origin:

From free (adjective) meaning without cost or charge and -bie (suffix) meaning a thing, it means something that is given away for free.

Examples:

1. The concert ticket came with a freebie T-shirt.
2. The hotel offered a freebie breakfast to guests.
3. The store was giving away freebies to customers.
4. The magazine included a freebie CD with its issue.
5. The company offered a freebie trial of its product.