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“vocabulary word”
Words words.
A pleonasm, or redundancy, since "vocabulary" is defined as "words"; however, the two elements are now so widely used together that very few people seem to be aware of their repetitious existence.
This entry is located in the following unit:
voc-, voca-, vocab-, vocat-, -vocation, -vocative, -vocable, vok-, -voke
(page 6)
(English-Vocabulary Words from Latin and Greek Units Prefixes, Roots, and Suffixes that Every Advanced-English Speaker and Reader Should Know)