noun
A dictionary that translates Japanese words into English. Common in language learning contexts.
和英辞典で単語の意味を調べた。
I looked up the meaning of the word in a Japanese-English dictionary.
英和辞典 is an English-Japanese dictionary, translating from English into Japanese, while 和英辞典 translates from Japanese into English.
Compound of 和 (wa, 'Japanese') + 英 (ei, 'English') + 辞典 (jiten, 'dictionary').