When it comes to synonyms for the phrase "packs up," there are several options to choose from. Some of the most commonly used options include "closes up," "shuts down," "wraps up," "puts away," and "tidies up." Each of these phrases has a slightly different connotation depending on the context, but they all generally refer to the act of preparing to leave or concluding a task. Other possible synonyms for "packs up" could include "finishes," "completes," "ends," "concludes," or "finalizes," all of which can be used in a similar sense of bringing something to a conclusion or wrapping it up.