語源でマスター！英単語帳

"Mastering English Vocabulary Through Etymology!" is a completely new English vocabulary learning app that teaches you English words from their etymology. It includes over 12,000 words and covers a wide range of levels, from Eiken Grade 5 to TOEFL/GRE.

■ Learn from Etymology for Longer Remembering
Instead of rote memorization, this app takes an approach of understanding and learning words from their etymology (prefixes, roots, and suffixes). For example, "transport" is "trans (towards) + port (to carry)," and "export" is "ex (outwards) + port (to carry)." Knowing the etymology allows you to infer the meaning of even unfamiliar words.

■ 7 Level Settings
Seven levels corresponding to Eiken and TOEIC scores allow you to learn at a difficulty level that suits you.

Lv.1: Eiken Grade 5-4 / TOEIC ~300 (Junior High School Basics)
Lv.2: Eiken Grade 3 / TOEIC 300-400 (Junior High School Graduates)
Lv.3: Eiken Pre-2nd Grade / TOEIC 400-550 (High School Basics)
Lv.4: Eiken Grade 2 / TOEIC 550-700 (High School Graduates/University Entrance Exams)
Lv.5: Eiken Pre-1st Grade / TOEIC 700-860 (Business English)
Lv.6: Eiken Grade 1 / TOEIC 860-990 (Advanced)
Lv.7: TOEFL / IELTS / GRE (Academic/Highest Level)
■ Fun Learning in a Quiz Format
A simple game where you guess the meaning of English words in a multiple-choice quiz. Words are grouped by etymology, allowing you to efficiently learn related words. You can choose from 10, 20, 30, 50, or all questions.

■ Comprehensive Explanations
Each word comes with the following information:
・Word Origin: A detailed explanation of how the word evolved from Latin or Greek to its current meaning.
・Derived Words: Related words derived from the word (noun, verb, adjective, etc.)
・Etymological Network: Related words with the same root (e.g., move → motion, moment, remote)
・Compound Words: Phrases and compound words in which the word is used
・Example Sentences: Practical English sentences and their Japanese translations
・Part of Speech: Noun, verb, adjective, adverb, etc.
■ Weakness Overcoming Feature
Incorrectly answered words are automatically added to your weakness list. You can graduate from this list after answering correctly twice in a row. You can check a list of incorrect words from your My Page and review them anytime.

■ Daily Challenge
Daily challenges, presented randomly every day, support continuous learning.

■ Offline Support
Using PWA technology, it can be used offline after being loaded once. You can study with peace of mind even in places where there is no signal during your commute to school or work.
■ Recommended for:
・Those who have trouble memorizing English vocabulary
・Those who want to learn efficiently from etymology
・Those who want to prepare for Eiken, TOEIC, or TOEFL
・Those who want to improve their English skills for university entrance exams
・Those who want to increase their business English vocabulary
・Those who want to study English in their spare time
■ Completely Free
All functions are available for free.