Student-friendly definitions: 12 examples and how to write them
By the IEP Atlas editorial teamLast updated
Short answer
A student-friendly definition explains a word in plain, everyday language, in a full sentence, and describes how the word is usually used. Example: reluctant means you do not really want to do something, so you are slow to do it. Strong definitions use words the student already knows and often start with you or someone.
Dictionary definitions are written for people who already know a lot of words. "Reluctant: unwilling; disinclined" is accurate, but a student who does not know "reluctant" probably does not know "disinclined" either. A student-friendly definition does the same job in words the student can use right away.
The 12 examples below each come with a note on what makes it work. After them, weak and strong versions sit side by side with the data from one student. For how definitions fit into a full teaching routine, see explicit vocabulary instruction. The cluster pillar on reading comprehension strategies covers the bigger picture.
The 4-part formula
Most strong student-friendly definitions follow the same pattern:
- A full sentence, not a fragment: "Cautious means ..." not "careful; wary."
- Everyday words only. Every word in the definition should be easier than the target word.
- A person or situation: "you," "someone" or "when something ..." makes it concrete.
- The typical use, not every possible meaning. Teach the meaning the text uses.
The What Works Clearinghouse adolescent literacy guide recommends teaching word meanings directly, and the English learner guide recommends teaching a set of academic words intensively over several days with varied activities.[1][2] Plain definitions are the starting point for both.
12 annotated examples
Elementary (grades K to 5)
- Curious: When you are curious, you want to find out about something. Why it works: starts with "you," uses only one-syllable support words.
- Enormous: Something enormous is very, very big, much bigger than usual. Why it works: gives the degree ("much bigger than usual"), not just a synonym.
- Reluctant: If you are reluctant to do something, you do not really want to do it, so you are slow to start. Why it works: includes the behavior you would see, which helps students spot it in a story.
- Exhausted: When you are exhausted, you are so tired you can hardly keep going. Why it works: shows it is stronger than "tired," which helps with shades of meaning.
- Protect: To protect something means to keep it safe from harm. Why it works: short, and "keep it safe" is a phrase students already use.
- Fortunate: Someone who is fortunate has something good happen to them, often by luck. Why it works: adds "by luck," the part that separates it from "happy."
Middle and high school (grades 6 to 12)
- Persuade: To persuade someone means to get them to agree with you or do something by giving reasons. Why it works: "by giving reasons" separates persuading from forcing.
- Analyze: When you analyze something, you look at its parts closely to understand how it works or why it happened. Why it works: turns an abstract school verb into steps a student can follow.
- Inevitable: Something inevitable is going to happen no matter what anyone does. Why it works: "no matter what" captures the meaning better than "unavoidable," which is just as hard.
- Ambiguous: Something ambiguous can be understood in more than one way, so you are not sure which meaning is right. Why it works: names the reader's experience of confusion.
- Undermine: To undermine something means to weaken it slowly, often in a hidden way. Why it works: includes "slowly" and "hidden," the parts that make it more than "hurt."
- Consequence: A consequence is something that happens because of something else someone did. Why it works: frames it as cause and effect, which fits how texts use it, good or bad.
Weak vs strong, side by side
| Word | Weak (dictionary style) | Strong (student-friendly) | What changed |
|---|---|---|---|
| cautious | wary; circumspect | If you are cautious, you are careful to avoid danger or mistakes. | Replaced harder words with easier ones |
| scarce | insufficient for demand | Something scarce is hard to find because there is not much of it. | Added the situation and the reason |
| significant | having meaning; notable | Something significant is important enough to notice or remember. | Defined with a test the student can apply |
| reluctant | unwilling | If you are reluctant, you do not really want to do something, so you are slow to do it. | Full sentence with the behavior |
| contradict | to assert the opposite of | To contradict means to say the opposite of what someone else said. | Plain verb, plus who and what |
The data behind it: one student, two kinds of definitions
Student (fictional): Ivy, grade 5, language disorder. Her teacher and SLP taught 20 words over 4 weeks: 10 with dictionary definitions from the glossary, 10 with student-friendly definitions. Every other part of the lesson was the same.
| Week | Explained correctly in new sentences: dictionary definitions (of 10) | Student-friendly definitions (of 10) |
|---|---|---|
| 1 | 2 | 4 |
| 2 | 3 | 6 |
| 3 | 3 | 7 |
| 4 | 4 | 8 |
This is one illustrative student, not a study. It matches what many teachers see: students can repeat a dictionary definition but cannot use it, while a plain definition gives them words to explain the meaning. After week 4, the team rewrote the glossary definitions for Ivy's remaining units.
Her goal used the template to define a word by category and features: given 10 taught words, Ivy will explain each in her own words with a category and one feature for 8 of 10 words on 3 consecutive probes.
How to check that a definition works
Have the student explain the word back in their own words, then answer a yes or no question that needs the meaning. "Would you be reluctant to eat your favorite food?" If the student can do both, the definition worked. If they can repeat it but not answer, the definition probably still contains a hard word. Count correct explain-backs with percent accuracy and record them on an accuracy data sheet.
Mistakes when writing definitions
- Weak: Using the word inside its own definition: "Protective means being protective of someone." Better: "Protective means wanting to keep someone safe."
- Weak: Giving every meaning at once. Better: Teach the meaning the text uses, and add others later. For words with several meanings, see multiple-meaning words IEP goals.
- Weak: A one-word synonym that is just as hard ("abundant: plentiful"). Better: "Abundant means there is a lot of something, more than enough."
Goals for word meaning
For goals on explaining and using taught words, see the vocabulary goals page and the template to explain taught vocabulary words with examples. For choosing which words to define in the first place, see Tier 2 vocabulary words. Paste a draft goal into the goal checker to tighten the wording.
Frequently asked questions
What is a student-friendly definition?
It is a definition written in everyday words, in a full sentence, that explains how a word is usually used. It often starts with you or someone and describes a situation, so students can picture the meaning and use the word themselves.
Where can I find student-friendly definitions?
Some learner's dictionaries and vocabulary programs include them. Many teachers write their own for each unit, which takes about a minute per word once you know the formula. Writing your own lets you match the meaning the text uses.
Should students write their own definitions?
After you teach the word, yes. Having students explain the meaning in their own words is a strong check of understanding. Start with your definition, then ask them to say it a different way.
Use it in IEP Atlas
- Vocabulary goals (reading)
- Define a word by category and features (goal template)
- Accuracy data sheet
- Morphology in the IEP glossary
- IEP goal checker
Related guides
- Reading comprehension strategies for struggling readers
- An explicit vocabulary instruction routine, word by word
- Vocabulary interventions for struggling readers
- Tier 1, 2 and 3 words: choosing which vocabulary to teach
- IEP goals for context clues: 20 examples
- Context clues activities, in teaching order
Sources
- Improving Adolescent Literacy: Effective Classroom and Intervention Practices, What Works Clearinghouse, Institute of Education Sciences
- Teaching Academic Content and Literacy to English Learners in Elementary and Middle School, What Works Clearinghouse, Institute of Education Sciences
Written and checked by the IEP Atlas editorial team under our editorial policy. This guide describes general practice and federal rules. It is not legal advice; your state may add requirements, and the IEP team makes the decisions for each student.