How Morse Code Works

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B1 English listening practice · American English · Curated for intermediate learners

About this clip

A 42s video in English at B1 level, suitable for intermediate learners. The speech is at a natural pace around 208 words per minute, rated 3.9/5, hard listening difficulty by Reelang’s algorithm.

What this clip covers:
  • ▸Science - Discoveries, experiments, and how the world works.
  • ▸Technology - Tech, gadgets, software, AI, and the digital world.
  • ▸Language Learning - Grammar, pronunciation, vocabulary, and real conversation practice.
  • ▸History - Historical events, eras, and the people who shaped the world.

Vocabulary frequency

How common is the vocabulary in this B1 English listening practice listening practice?

89.1%
of words are in the top 2,000 most common English words
Based on this reel’s transcript, most of the vocabulary is high-frequency, everyday English.

General English frequency

81.3%
Top 1,000
89.1%
Top 2,000
96.1%
Top 5,000

Spoken English frequency

86.8%
Top 1,000
95.6%
Top 2,000
100%
Top 5,000
👄 Conversational vocabulary
This reel’s words appear more often in subtitle-based spoken-English data than in general usage, so it may feel closer to everyday conversation.

Words above this video’s level

Quick glosses for vocabulary that goes beyond this video’s B1 level.

sos
1×
Rare / outside top 5,000
(acronym) SOS — international distress signal
morse
3×
Rare / outside top 5,000
(brand) Morse — code for transmitting messages
alphabet
1×
Rare / outside top 5,000
set of letters used in writing

Source: wordfreq 3.1.1 (general) · SUBTLEX-US 2012 (spoken). Buckets approximate; exact ranks not stored.

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