Homonym (onym) A word that is spelled and pronounced like another word but is different in meaning. Bear and bare are two homonyms that are easily confused.
Pseudonym (onym) A name a writer uses instead of his or her real name I used a pseudonym when I wrote a book so that no one would know it was written by me.
Hostage ( host) A person who is captured by someone who demands that certain things be done before the person is freed Over the weekend we saw a movie about people being taken hostage.