Wizards are Dungeons & Dragons Fifth Edition's arcane magical generalists, capable of learning more spells than any other class. However, many D&D 5e wizard subclasses specialize in one area of magic, and the School of Transmutation Arcane Tradition, for example, focuses on the changeable properties of physical matter.
Source:https://www.cbr.com/dnd-rpg-transmutation-wizard-build-player-guide/