Why listening
To speak better, train your ear.
Most learners practise speaking by speaking. But the words you can say come from the words you can catch, and research on language learners keeps pointing the same way: the vocabulary you know by ear predicts how well you speak better than the vocabulary you know on the page.
.71
The correlation between learners’ scores on a listening vocabulary test and their IELTS speaking scores in one study. For a test that only asks “do you know this word when you hear it?”, that’s a strong link.
What the studies found
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Words you can hear track how well you speak
Learners of English heard words, one at a time, and said whether they knew each one. Their scores on that listening test correlated .71 with their IELTS speaking scores, a strong link for a test that never asked them to say a word.
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Spoken vocabulary matters, written vocabulary didn’t
Forty-six university learners of English took the same vocabulary test twice, once in writing and once spoken, then told a story aloud. Their spoken vocabulary scores were linked to almost every rating of their speech, from fluency to pronunciation. Their written scores weren’t linked to any.
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Knowing a word on the page isn’t knowing it by ear
When learners’ vocabulary is measured in writing and by sound, the two sizes can differ a lot. A written test can overestimate the words you’ll actually catch in conversation, or miss the ones you only know from hearing them.
Why the ear comes first
- Conversation runs at the speed of speech
- In a real conversation there’s no rereading. If you can’t pick a word out of fast, connected speech, you can’t answer it, and you’re unlikely to reach for it when it’s your turn.
- You say what you’ve heard
- The rhythm, the sounds and the ready-made phrases you use when you speak are the ones you’ve heard over and over. Listening is where they come from.
- Reading teaches a different word
- A word you’ve only read is stored with its spelling, not its sound. Hearing it in real speech, from different voices, is what makes it usable out loud.
How Catch That trains your ear
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Real speech, at real speed
Practise on podcasts made for native speakers, not slowed-down textbook audio.
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Sound and words, together
Live subtitles follow the audio word by word, so you link each sound to the word it is.
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Shadow every sentence
The player pauses after each sentence and replays it, so you can hear it again and say it back.
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Find out what you actually caught
Clip exercises play a sentence from another episode and ask you to rebuild it, so the gaps in your ear show up.
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The same word, in many voices
“Heard in these places” plays a word you’re learning as other people say it, in other sentences.
What the research doesn’t say
These studies measure how closely listening vocabulary and speaking go together. They don’t prove that one causes the other, and most of them looked at learners of English. Speaking practice still matters. But if you want to know which vocabulary is worth building, the evidence points to the words you can catch by ear.
References
- Milton, J., Wade, J., & Hopkins, N. (2010). Aural word recognition and oral competence in English as a foreign language. In R. Chacón-Beltrán, C. Abello-Contesse & M. Torreblanca-López (Eds.), Insights into Non-native Vocabulary Teaching and Learning (pp. 83–98). Multilingual Matters. https://doi.org/10.21832/9781847692900-007
- Uchihara, T., & Clenton, J. (2023). The role of spoken vocabulary knowledge in second language speaking proficiency. The Language Learning Journal, 51(3), 376–393. https://doi.org/10.1080/09571736.2022.2080856
- Milton, J., & Hopkins, N. (2006). Comparing phonological and orthographic vocabulary size: Do vocabulary tests underestimate the knowledge of some learners? The Canadian Modern Language Review, 63(1), 127–147. https://doi.org/10.3138/cmlr.63.1.127