There are several synonyms for the phrase "putting in can," which generally means storing something in a sealed container. Some common alternatives include "placing in a container," "packaging," "bottling," or "canning." Other possible synonyms might depend on the type of container or the purpose of the action, such as "jarring" for glass jars, "tinning" for metal cans, or "freezing" for storing in the freezer. Ultimately, the choice of synonym may vary based on the context and specific language needs of the speaker or writer. However, all of these terms describe the act of preserving or capturing something in a secure, enclosed space.