Why Stop Signs Are Red And Octagonal

WhatsAppGmailTelegramEmail

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

About this clip

A 1:00 video in English at B1 level, suitable for intermediate learners. The speech is at a natural pace around 206 words per minute, rated 4.2/5, hard listening difficulty by Reelang’s algorithm.

What this clip covers:
  • ▸Science - Discoveries, experiments, and how the world works.
  • ▸History - Historical events, eras, and the people who shaped the world.
  • ▸Transportation - Cars, trains, planes, and getting around.

Vocabulary frequency

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

90.9%
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

85.8%
Top 1,000
90.9%
Top 2,000
95.4%
Top 5,000

Spoken English frequency

91.2%
Top 1,000
98.4%
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.

rectangular
1×
Rare / outside top 5,000
shaped like a rectangle
gothic
1×
Rare / outside top 5,000
medieval architectural style
blur
1×
Rare / outside top 5,000
become indistinct or blurred image
coating
1×
Rare / outside top 5,000
layer covering a surface

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

Explore American English Comprehensible Input on Reelang

Open English hub