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Glossary

Frequency list

A frequency list ranks the words of a language by how often they occur in a large body of real text.

The distribution is steeper than most people expect. The most common 1,000 words typically account for around 80 per cent of everyday speech, and the curve flattens quickly after that — which is what makes early vocabulary study so disproportionately effective, and later study feel so slow.

The corpus matters. A list built from subtitles reflects conversation; one built from newspapers reflects written formality. Neither is wrong, but they rank words differently.

In NoaLingua The bundled lists are built from subtitle data, which is the right corpus for a product aimed at video. They exist for seven languages — English, Spanish, French, German, Italian, Portuguese and Russian — and drive both the uncommon-word underline and the guided A1–C1 course.