Vocabulary
Build a list of terms and definitions - foreign language vocabulary, science terms, historical names - then drill through them. Words you get right twice in a row are marked mastered and drop out of the rotation; words you miss come back sooner.
No words yet. Add your first term above.
Using it well
Word lists are the clearest case for the difference between recognition and recall. Reading down a list of French words with their translations feels like learning; every word looks familiar. Covering the translation and producing it is the actual test, and the driller does the covering for you. Go both directions: target language to English builds reading, English to target language builds speaking and writing, and they are separate skills.
Keep lists short and themed. Twenty words about food, twenty about travel, twenty verbs of motion. A list of two hundred mixed words takes too long to drill in one go, and long lists tend to get drilled once and abandoned. Short lists get drilled daily, which is what matters. Retire a list once you get through it twice without a miss, and bring it back a few weeks later for a check.
The driller works well beyond languages. Science terms, historical figures and what they did, literary devices with their definitions, and anatomical structures are all lists of pairs, and all respond to the same treatment. The foreign languages page has more on building vocabulary that lasts, and the spacing guide explains how often to come back to a list.