Homographs are words that are spelled the same but have different meanings and sometimes different pronunciations. For example, the word lead can refer to a type of metal or the act of guiding someone. The context in which a homograph is used helps determine its meaning. These words can create confusion in language, especially in written form, where pronunciation is not clear. Understanding homographs is important for effective communication, as it allows speakers and writers to convey their intended message accurately. Examples include tear (to rip) and tear (a drop of liquid from the eye).