Accustoms is a verb that means to make someone or something familiar with something. There are many synonyms for the word accustoms, such as familiarizes, acclimatizes, habituates, trains, educates, instructs, coaches, and guides. Each of these words implies a different aspect of becoming accustomed to something, such as learning, practice, repetition, or exposure. Familiarizes suggests becoming knowledgeable about something through experience, while acclimatizes implies adapting to a new environment or climate. Habituates involves becoming accustomed to a particular behavior or activity, while trains suggests a more deliberate process of instruction. The choice of synonym depends on the context and nuances of the situation.