📚 Reading Grades 3–12
Vocabulary Builder
Learn a few word parts and you can figure out thousands of words. Then save new words to your own word bank and quiz yourself.
Learn How it works
Use context clues
- Definition: The arid, or very dry, land had no trees.
- Synonym/antonym: She was elated, not sad at all.
- Example: Mammals, such as dogs, whales, and bats, feed their young milk.
Common word parts
| Part | Meaning | Examples |
|---|---|---|
| bio | life | biology, biography |
| geo | earth | geography, geology |
| graph / gram | write, draw | autograph, diagram |
| tele | far | telescope, telephone |
| port | carry | transport, portable |
| dict | say | predict, dictionary |
| spect | look | inspect, spectator |
| rupt | break | erupt, interrupt |
| chron | time | chronological, synchronize |
| un-, in-, im-, dis- | not | unhappy, invisible, impossible, disagree |
| re- | again | redo, review |
| pre- | before | preview, prehistoric |
| sub- | under | submarine, subway |
| -ology | study of | biology, zoology |
| -able, -ible | can be | readable, flexible |
| -less | without | fearless, careless |
Try it My word bank
Practice Check yourself
Answer, then tap Check. You get an explanation either way.