고등 개념어

If you find yourself quickly confused by high school textbook concepts even after memorizing them, try reading the structure of their meanings first.

This app explains concepts frequently found in textbooks and workbooks, such as integration, induction, osmosis, and diffusion, by breaking them down into their Chinese character compositions. It is not an app for memorizing characters, but a concept learning app that helps you understand concepts in mathematics, science, Korean language, social studies, and history more easily by using the meanings within the words as clues.

Key Features

- Fast search by headword, initial consonant, or English/symbolic keywords

- Concept cards containing Hanja breakdown, literal translation, etymology explanation, subject definition, examples, and precautions

- Hanja reverse search to find other conceptual terms containing the same Hanja

- Exploration of subject concepts aligned with the flow of subjects and units

- Repetitive learning through card study, today's review, and concept checks

- Save favorites, confusing concepts, and learned concepts to your device

- Home/Lock screen widgets and user-enabled local notifications

Use it when:

- You want to instantly look up unfamiliar high school conceptual terms during class

- You are curious about the meaning of Hanja terms in math, science, or social studies/history

- You want to organize concepts through understanding rather than memorization while studying for school exams or the CSAT

- You want to see the connection between why similar subject terms have different meanings

- You want to quickly review concepts learned today using cards and review materials

Learning Method

When you search for a conceptual term, you first view its Hanja composition and literal translation, and then check how that meaning connects to actual subject concepts. Tapping a Hanja character displays other conceptual terms containing the same character, allowing you to follow the connections between concepts instead of memorizing individual words.

Offline-Centric

The app's learning content is provided using data stored on your device. Search and learning operate without login or server synchronization, and it does not use runtime AI Q&A. External platforms are used only when necessary, such as for advertisements, in-app purchases, and sharing.

Free Usage and Support

Search, detailed reading, Hanja reverse search, and subject exploration are available for free. Card study, daily review, and concept checks provide free sessions daily; if you wish to study further, you can continue with optional rewarded ads or support (unlocked once via Pro). Mandatory interstitial ads are not used.