A sentence is missing its key word. Stamp the vocabulary tile that fits the meaning — not just the grammar. Race a 75-second timer or survive with three lives across Grade 9, Grade 10, and SAT sentences in General, Science, Literature, and History.
Open the Book
Pick Survival or a 75-second Rush, then choose Grade 9, Grade 10–11, or SAT Prep and a topic. Press the big play button to turn the first page.
Read the Glowing Blank
A parchment sentence is missing one word. Tone, grammar, and meaning all point to a single best stamp — the other three tiles can fit the grammar but not the sense.
Stamp a Word Tile
Tap one of the four ink stamps, or press keys 1–4. A correct stamp fills the blank, stacks your combo, and can trigger an Ink Storm every fifth hit.
Peek Only If You Need It
Tap Peek to see a short definition of the missing word. You have 3 peeks per game — they help you learn, they do not stamp the answer for you.
200+ Storybook Sentences Across 3 Levels
A curated bank of more than 200 questions spanning Grade 9, Grade 10–11, and SAT prep — each a real sentence with one key word replaced by a glowing blank, covering General, Science, Literature, and History.
Stamp the Word Into the Blank
Four colorful ink stamps sit under the page. Tap one and it slams into the missing spot. Correct stamps light green, combos stack, and a five-in-a-row Ink Storm pays extra.
Survival Lives or a 75-Second Rush
Play with three lantern lives, or race the clock. Fast stamps earn a speed bonus. High scores stay on this device for each level, topic, and mode.
Peek the Definition When You Are Stuck
Tap Peek to reveal a plain-English definition of the missing word. You get 3 peeks per game — still have to stamp the right tile yourself.
Seeing a word in a real sentence — rather than in isolation — forces you to understand its precise meaning and register. This mirrors how vocabulary actually appears on the SAT and in academic reading, making it a more authentic study method.
The three distractors are the same part of speech as the correct answer and could grammatically fit the blank. The only way to reject them is to understand the full semantic meaning of the sentence — exactly the skill you need for standardized tests.
Yes! The Grade 9 difficulty uses everyday academic words in clear, direct sentences. Middle school students learning to read for context will find it accessible and educational.
Tapping Peek reveals a plain-English definition of the missing word. You start with 3 peeks per game. The blank stays empty — you still have to stamp the word yourself.
Questions span four categories: General (everyday academic vocabulary), Science (biology, chemistry, physics, earth science), Literature (narrative, poetic, and critical terms), and History (politics, war, society, and economics). Shuffle all categories with 'All Topics' mode.
Each correct stamp earns 100 points (Grade 9), 150 (Grade 10–11), or 200 (SAT Prep), plus a 50-point streak bonus for every hit after the first. Stamp in under 7 seconds for +25. Every fifth combo triggers an Ink Storm worth +100. Survival ends after 3 misses; Rush ends when the 75-second timer hits zero.