Agrihan is a name that has few synonyms. However, there are a few words that could be used instead of Agrihan. Agrihan is an island located in the Northern Mariana Islands, which is a group of islands in the western Pacific Ocean. Therefore, some of the synonyms that could be used instead of Agrihan are Northern Mariana Islands, Pacific Islands, and Western Pacific. These synonyms all relate to the same geographical location as Agrihan. Other synonyms that could be used are similar sounding words like Agrahan or Aggrayan. However, these words do not hold the same meaning as Agrihan and are not commonly used.