What Are The 3 Compound Words?

What Are The 3 Compound Words? There are three types of compound words: open, closed and hyphenated. What are some examples of compound words? bullfrog. snowball. mailbox. grandmother. railroad. sometimes. inside. upstream. What are the ten compound words? aboveboard. afterbirth. afterburner. afterglow. afterimage. afterlife. aftermath. afternoon. What are compound words? Compound words are formed when