Wych, a word of Old English origin, has several synonyms that can be used interchangeably depending on the context. It may mean a kind of tree, such as the Scots pine, and can be replaced by its synonyms such as fir, pine, or spruce. It can also refer to witch hazel, and in this case, may be substituted for witch hazel or winterbloom. Finally, wych can be used to describe supernatural beings, particularly witches, and its synonyms include spellcaster, sorceress, and enchantress. However, it is crucial to note that each synonym of wych has its specific connotation, and it is essential to use the word that best expresses the desired meaning.