The phrase "faces up to it" is often used to describe someone who is taking responsibility for a situation or confronting a difficult truth. There are several synonyms that can be used depending on the context and level of seriousness. Some alternatives include "acknowledges," "admits," "accepts," "confronts," "owns up to," "grapples with," "tackles," and "deals with." Each of these words conveys a sense of taking ownership and not shying away from a challenge or uncomfortable situation. It's important to choose the right synonym based on the tone and message you want to convey.