AI Vocabulary List Builder for Any Subject

How it works

From subject and topic to a vocabulary list in four steps.

Enter subject, topic, and grade level

Teachers choose the subject and level, enter the number of words, and type the specific topic (cell division, the Civil War, ratios and proportions, electrochemistry). The combination tells the AI which vocabulary register is appropriate, a 6th-grade science vocabulary list uses different sentence complexity than an AP Chemistry list on the same topic.

Select the level

Choose the level, including English language learners; with Improve with AI on, you can ask for simplified definitions, high-frequency words and visual context clues, grade-level definitions and subject-appropriate examples, or precise academic and domain-specific language and technical nuance. Ask in the topic and the AI generates three separate word lists (one for each tier) or a single tiered list showing all three levels for each word.

AI generates word list with definitions, sentences, and an activity

The output includes: the word list (the number of words you enter), a definition for each word appropriate to the selected level, a context sentence drawn from the subject domain (not generic sentences), and a vocabulary activity. A biology list on mitosis at the high school level produces terms like "prophase," "spindle fiber," and "chromatid" with definitions and sentences from cell biology, not definitions like "prophase is a phase that happens in cells."

Copy for flashcards, Frayer models, or Google Classroom

Copy the list into flashcards for student self-study, Frayer model templates, or a Google Classroom post.

What it can do

Subject-authentic vocabulary instruction, built for diverse classrooms.

Tiered vocabulary output for differentiation

Ask in the topic for three tiers, and the AI generates the same unit vocabulary at each. ELL Tier definitions use simpler synonyms and avoid idioms, and if you ask in the topic they include a cognate note when available (English "photosynthesis" is similar to Spanish "fotosintesis", this helps Spanish-speaking ELL students activate prior knowledge). Standard Tier uses grade-level academic language. Advanced Tier uses precise technical terminology and notes distinctions between related terms.

Frayer model template

The Frayer model is a four-quadrant graphic organizer: the word in the center, with Definition, Characteristics, Examples, and Non-Examples in the four quadrants. Ask in the topic and the AI pre-fills the Definition quadrant from the generated list and suggests 2 to 3 Characteristics and Examples. Students complete Non-Examples and can add additional examples from class.

Context sentences from the subject domain

Generic vocabulary builders produce context sentences like "The mitosis is important." This builder generates subject-authentic sentences: "During prophase, the chromatin condenses into visible chromosomes as the nuclear envelope begins to dissolve." The sentences demonstrate the word in the kind of sentence students will actually encounter in their textbook and assessments, which makes the vocabulary more transferable to reading comprehension.

ELL simplification with cognate notes

The ELL tier simplifies definitions and context sentences without reducing the vocabulary demand when you name the terms in the topic, so ELL students still learn the same academic terms as their peers. Where cognates exist between English and the student's home language (Spanish, French, Portuguese, Italian), ask in the topic and the AI notes the cognate to help students activate prior knowledge. Definitions avoid idiomatic expressions. Sentence structures use subject-verb-object order and shorter clauses.

Six activity types

The generator adds one practice activity to every list, and you can ask in the topic for matching (word to definition), fill-in-the-blank (context sentences with the target word removed), Frayer model (four-quadrant graphic organizer), vocabulary grid (rate familiarity with each word on a 1-4 scale before and after instruction), word sort (categorize words by concept or word family), or cloze paragraph (a short passage with multiple vocabulary terms removed). Each activity type develops a different aspect of word knowledge.

Flashcards and Google Classroom

Paste the list into a Google Classroom post.

Where teachers use it

Content-area teachers with ELL students, Science, social studies, and math teachers who have ELL students use the tiered vocabulary builder to create ELL-accessible versions of unit vocabulary without separately sourcing definitions and simplifying sentences for each word. Cognate notes, if you ask for them in the topic, help Spanish-speaking ELL students connect new English academic words to familiar Spanish words.

Reading and English Language Arts, For novel studies, the vocabulary builder generates the key literary and thematic vocabulary for each chapter or section. Context sentences are drawn from the style and themes of the book rather than generic examples. Ask in the topic for Frayer models for literary terms (foreshadowing, motif, unreliable narrator) and the AI pre-populates them with the definition and literary examples.

Advanced Placement and college prep courses, AP Biology, AP US History, and AP Language courses have substantial discipline-specific and academic vocabulary demands. The Advanced tier generates precise technical definitions with the nuance AP-level students need. Context sentences reflect the academic register of AP exam prompts and college course reading.