SKSensei is a Japanese study site built around the idea that a word is easier to keep when you see it used. Look up a Japanese word, read its meaning, and read real example sentences with the reading attached, then move on to grammar explanations, kanji readings and audio. The dictionary is free, and the optional Study Club adds exercises, audio and spaced review for the words you looked up, which is the part that turns recognition into recall. The word list is organised by level, from N5 material for beginners up to N1 entries that read like exam vocabulary, with kanji shown alongside their readings. The site language is selectable across Portuguese, English, Spanish, Korean, French, Italian, German, Indonesian, Vietnamese, Thai and Japanese, and the audio for a word comes from the browser itself.