Smart subtitles · YouTube · Browser extension

Learn English from YouTube — and actually remember it

You already watch English videos to get better. Natively turns them into real practice right inside the player: understand any word in context, jump back to the line you missed, and keep what you learn.

Works in your browser, where you already watch YouTube. No Mac app needed for this.

Watching is easy. Learning from it isn’t.

YouTube is full of perfect, real-world language practice. The problem was never the videos — it is everything you have to do around them just to understand a word.

  • One word breaks the sentence

    You follow the video fine until a single unfamiliar word lands, and suddenly the whole sentence stops making sense.

  • Tabbing out kills the flow

    You pause, switch to a translator, paste the word, read, switch back, and rewind — and by then you have lost the thread.

  • Translated subtitles are context-blind

    Even “smart subtitle” tools just bolt a machine translation onto the line. It ignores the topic, often picks the wrong meaning, and is gone the moment you move on.

1 · Understand

Click any word, understand it in context

The video plays as usual. Hit a word you do not know? Click it right in the subtitles and Natively explains it for this exact sentence — without pausing or leaving YouTube. This is the real thing, right inside the player:

Smart subtitles · YouTube

Understand every word while you watch

Watching a video in a language you're still learning? Tap any word in the subtitles to instantly see its meaning — without pausing or leaving the player.

YouTube
How climbers prepare for Everest
 
0:20 / 4:08
acclimatize/əˈklaɪməˌtaɪz/verb
to gradually adjust to a new climate, altitude, or environment so the body can function safely.
Climbers typically acclimatize for days at base camp before going higher.
Tap any underlined word to see the meaning.
2 · Rewind

Missed a phrase? Jump back to that exact line

The subtitle panel keeps the lines around you on screen, each with its own timestamp. Scroll back a few lines, click the time, and the video rewinds and plays from there — with the current line highlighted so you never lose your place.

YouTube0:42 / 4:08
How climbers prepare for Everest
Natively subtitles

Click a line’s timestamp to jump straight to it.

Why it matters

On YouTube you only see one line at a time, and to re-hear the one you missed you drag the timeline and guess. Natively keeps the lines around you on screen, each with its own timestamp — so you jump back to the exact line, not somewhere near it.

3 · The right meaning

Context, not 500 guesses

The definition you saw above was written for this video. A generic translator does not know what you are watching, so it hands you a long list of meanings and lets you guess which one fits:

acclimatize
  • to get used to a new place
  • to adapt to office life
  • to adjust to cold water
  • to settle into a new school
  • …and a dozen more, none about climbing

Natively skips the guessing: it reads the sentence and the topic and gives you the one meaning that fits what this speaker is actually saying.

One tool, right where you watch

  • Click a word for a meaning written for the exact sentence and topic
  • See the lines around you and rewind to any one by its timestamp
  • The right meaning in context — not a list of unrelated dictionary senses
  • All in your browser — no extra app, no copy-paste

Frequently asked questions

How does learning with YouTube work?
Natively adds tappable definitions to YouTube subtitles right inside the player. When you hit a word you do not know, tap it to see its meaning explained for the exact sentence and topic of the video.
How is this different from a translator or a translated-subtitles extension?
A plain translator gives a generic definition with no idea what you are watching, so the meaning often does not fit the topic. Natively reads the sentence and the video context and explains the word the way it is actually used in that moment.
Can I go back to a line I missed?
Yes. Natively shows the subtitle lines around the one playing, each with its own timestamp. Click that line and the video jumps straight to it, instead of dragging the timeline and guessing.
Does it remember where I saw a word?
Yes. When you save a word, Natively keeps the sentence, the video, and the timestamp. Later, while reviewing, you can jump straight back to that moment and hear how the speaker used it.
Is this the browser extension or the Mac app?
Smart subtitles for YouTube live in the Natively browser extension, because that is where you watch YouTube. Install it for Chrome — you do not need the Mac app for this feature.
Is this for beginners?
It is best for progressing, intermediate-and-up learners who already understand most of a video and want to close the gaps.

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