Swimming Day is a fun family book designed to build vocabulary and provide a better understanding of onomatopoeia. While reading, you will find examples of onomatopoeia and some vocabulary words you may not be familiar with. You hear onomatopoeia consistently on a daily basis, although you may not have known the exact terminology for the sounds. It's a good idea to use context clues to assist you in figuring out any unfamiliar words listed in the book. A glossary is located at the end of the book to provide any further support of the vocabulary words used. Onomatopoeia: The formation or use of words such as buzz or murmur that imitate sounds associated with objects or actions they refer to.