The phrase "baden twice" essentially means to take a bath or to wash oneself. There are, however, a plethora of synonyms that can be used to express the same idea. Some of these include terms like "shower," "bathe," "cleanse," "rinse," "douse," "scrub," "soak," "immerse," and "wash up." Each of these words denotes a slightly different interpretation of the process of bathing or washing, but all represent alternative ways of saying "baden twice." It's useful to have a variety of synonyms in your vocabulary so you can spice up your writing and avoid repetition.