1) As a bonus 2) As a gift 3) Comp 4) Costless 5) Free 6) Free of charge 7) No charge 8) Nofee 9) Unpaid 10) Without charge 1) At no charge 2) At no cost 3) Complimentary 4) Costing nothing 5) Costless 6) For free 7) For love 8) For nothing 9) Free 10) Free of charge 11) Freely given 12) Gratuitous 13) On the house 14) Unpaid 15) Without charge 16) Without payment 
Gratis s or s is the quality of an action where the action is willingly provided without any requirement by the provider for compensation or monetary remuneration. It is often referred to in English as free of charge (FOC), complimentary, or on the house. Companies, producers, and service providers often provide certain things free of charge as pa...
without charge; for free
• (adv.) For nothing; without fee or recompense; freely; gratuitously.
To do or give something without payment. Free of charge
Gra'tis adverb [ Latin , contr. from gratiis out of favor or kindness, without recompense, for nothing, from gratia favor. See Grace. ] For nothing; without fee or recompense; freely; gratuitously. 
Gratis is Latin for free of charge
[adv] - without payment
for free adverb without payment; `I`ll give you this gratis`
[Intelligent words] costing nothing