ACCUSTOMS is a verb that means to make someone or something familiar with a certain situation or environment. HABITUATES is a 10-letter synonym for ACCUSTOMS, meaning to make someone or something accustomed to a certain situation or environment. ENURES is a 6-letter synonym for ACCUSTOMS, meaning to become used to something through repetition. ORIENTS is a 7-letter synonym for ACCUSTOMS, meaning to adjust or adapt to a new environment or situation. INURES is a 6-letter synonym for ACCUSTOMS, meaning to become accustomed to something unpleasant. All of these words refer to the process of becoming familiar with a certain situation or environment.