Beta testing starts in August 2026

Glossary of terms

Glossary of vocabulary learning terms

Short, practical explanations of concepts that appear in RevoMemo: spaced repetition, active recall, forgetting curve, FSRS, flashcards, and learning vocabulary in context.

This dictionary is written for language learners, not theorists. Each concept combines memory, linguistics, repetition, and daily practice with vocabulary.

You don’t need to know the theory to use RevoMemo. But if you want to understand why sentence flashcards, active recall, and spaced repetition work together, start with these six concepts below.

Spaced repetition

Spaced repetition is a learning method where reviews return at increasing intervals before the material fully drops out of memory.

Read: What is spaced repetition?

FSRS

FSRS is an open review scheduling algorithm that helps decide when a given card should return.

Read: What is FSRS?

Flashcards

Flashcards are short learning cards that usually contain a question, hint, or sentence and an answer to check.

Read: What are flashcards?

Do you want to try these methods in practice?

RevoMemo focuses on learning words in sentences, active recall, and spaced repetition tailored to your memory.

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