Stop and Go, Yes and No: What Is an Antonym? (Words Are CATegorical ®)

Pitch and Throw, Grasp and Know (Words Are CATegorical)

How Much Can a Bare Bear Bear?: What Are Homonyms and Homophones? (Words Are CATegorical)

I'm and Won't, They're and Don't: What's a Contraction? (Words Are Categorical R)

I and You and Don't Forget Who: What Is a Pronoun? (Words Are CATegorical)

Dearly, Nearly, Insincerely: What Is an Adverb? (Words Are CATegorical)

Hairy, Scary, Ordinary: What Is an Adjective? (Words Are Categorical)

Pre- and Re-, Mis- and Dis-: What Is a Prefix? (Words Are Categorical) (Words Are Categorical (Paperback))

Ful and -Less, -Er and -Ness: What Is a Suffix? (Words Are Categorical) (Words Are Categorical (Paperback))

A Mink, a Fink, a Skating Rink: What is a Noun? (Words Are Categorical)

Thumbtacks, Earwax, Lipstick, Dipstick: What Is a Compound Word? (Words Are Categorical (Paperback))