The phrase "more costing" means an item or service that is more expensive than others. There are many synonyms for this phrase, including "higher-priced," "costlier," "more expensive," "pricier," and "heftier." Other synonyms for this phrase could be "higher-end," "exorbitant," and "luxurious." Depending on the context, the synonym chosen may convey a different connotation. For example, "luxurious" may suggest a high quality in addition to being expensive, while "pricier" may communicate a less negative tone than "exorbitant." Regardless of the synonym chosen, the meaning is clear: the item or service in question comes at a greater cost.