ASVAB Word Knowledge
Vocabulary, roots, prefixes, and context clues
Context Clues & Root Words
Learn to figure out word meanings using context clues and by breaking words into roots, prefixes, and suffixes.
Prefixes and Suffixes
Master prefixes and suffixes—the word parts that transform roots into new words with different meanings and parts of speech.
Synonyms and Antonyms
Master synonyms (words with similar meanings) and antonyms (words with opposite meanings)—critical for ASVAB vocabulary questions.
Advanced Vocabulary Strategies
Master advanced strategies for tackling high-frequency ASVAB vocabulary, including word families, multiple meanings, and military-specific terms.
About the Word Knowledge Section
The Word Knowledge (WK) section is one of the 9 subtests on the ASVAB (Armed Services Vocational Aptitude Battery). It covers vocabulary, roots, prefixes, and context clues.
Your WK score contributes to composite line scores used by military branches to determine which jobs you qualify for. A higher WK score opens up more career options across the Army, Navy, Marines, Air Force, Coast Guard, and Space Force.
Our 4 interactive lessons take you from fundamentals to test-ready mastery. Each lesson includes concept explanations, worked examples, and practice questions with instant feedback.