Final answer:
A homograph is a word that is spelled the same as another word but has a different meaning and sometimes a different pronunciation, often used in word contests or puzzles.
Step-by-step explanation:
The term homograph refers to words that are spelled the same way but have different meanings and sometimes different pronunciations. In English, homographs can create a challenge for those trying to learn the language, and they can often be the subject of word contests or puzzles. For example, the word 'lead' can mean to guide others or can refer to a metal element. These words sound different and mean different things, yet they are spelled identically.