Word: racebooks
Part of speech: Noun
Syllables: ra
ce
books
Definition: Plural of racebook;  is a place where a gambler can wager on various sports competitions, including golf, football, basketball, baseball, ice hockey, soccer, horse racing, greyhound racing, boxing, and mixed martial arts
Morphemes:
Affix: race
Language: en
PoS: Verb
Meaning: To compete against in such a race.
Affix: book
Language: en
PoS: Noun
Meaning: A record of betting (from the use of a notebook to record what each person has bet).
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form regular plurals of nouns.