Vocabulary is more that just words.

Vocabulary is more than just words it is all about words. Prefixes, Suffixes, Base Word, Part of Speech, Pronunciation (aka Sound Spellings), Meaning, etc. This year will be learning all about words.

Affix is a suffix or prefix attached to a base word or word root that changes the meaning of the word.

Base Word is a word to which prefixes/suffixes are added.

Prefix is an affix that is added to the beginning of a word that changes the meaning of that word.