The word "permanents" refers to something that is intended to stay for a long time or indefinitely. However, there are several synonyms to this word that could be used interchangeably such as: permanent fixtures, fixed, unchanging, lasting, enduring, constant, stable, persistent, ineradicable, and immutable. These words could be used to describe a wide array of things, ranging from physical structures to personality traits. It is important to choose the right synonym based on the context and meaning of the sentence. Overall, it is a good practice to utilize synonyms to avoid redundancy and add variety to writing.