Where quiet growth happens.
Ask freely. Learn deeply.

Where quiet growth happens.
Ask freely.
Learn deeply.

Where quiet growth happens.
Ask freely. Learn deeply.

@nandi

@prianca

@nandi

@prianca

@nandi

@prianca

Deepen your personal AI English dictionary.

For words, phrases, even full sentences.

Deepen is the only dictionary that adapts to you

Most dictionaries define words — but Deepen listens first.


Our AI technology tailors every definition to your level and native language, even the full sentence you’re reading.

  • Natural English, not textbook English

    Deepen rewrites complex definitions into natural, easy English. So you don’t need a dictionary to understand your dictionary.

  • Examples that you can understan how to use

    At Deepen, you can generate multiple examples that match your age and feel familiar to you.

  • Explanations across cultures

    What makes sense in English doesn’t always translate. Deepen explains meaning with cultural clarity. It considers cultural nuance to help you truly understand.

  • Natural voice, Native rhythm.

    Word, phrase, and example is read aloud in fluent, natural English — so you can learn by listening, at your own pace.

Deepen is the only dictionary that adapts
to you

Most dictionaries define words — but Deepen listens first.

Our AI technology tailors every definition to your level and native language, even the full sentence you’re reading.

Deepen is the only dictionary that adapts to you

Most dictionaries define words — but Deepen listens first.


Our AI technology tailors every definition to your level and native language, even the full sentence you’re reading.

  • Natural English, not textbook English

    Deepen rewrites complex definitions into natural, easy English. So you don’t need a dictionary to understand your dictionary.

  • Examples that you can understan how to use

    At Deepen, you can generate multiple examples that match your age and feel familiar to you.

  • Explanations across cultures

    What makes sense in English doesn’t always translate. Deepen explains meaning with cultural clarity. It considers cultural nuance to help you truly understand.

  • Natural voice, Native rhythm.

    Word, phrase, and example is read aloud in fluent, natural English — so you can learn by listening, at your own pace.

A single search, Endless understanding

A single search,
Endless understanding.

A single search, Endless understanding

Word, idiom, or full sentence — just type it.

Word, idiom, or full sentence —
just type it.

Word, idiom, or full sentence — just type it.

Deepen AI explains exactly what you searched, in full context. No need to switch between dictionary, translator, or other apps. It’s all here, in one flow.

Deepen AI explains exactly what you searched, in full context. No need to switch between dictionary, translator, or other apps. It’s all here, in one flow.

Deepen AI explains exactly what you searched, in full context. No need to switch between dictionary, translator, or other apps. It’s all here, in one flow.

Words shift in the context

Words shift in the context

Words shift in the context

Deepen doesn’t just list meanings.
It shows you which one is right, in the sentence.

Deepen doesn’t just list meanings.
It shows you which one is right, in the sentence.

Deepen doesn’t just list meanings.
It shows you which one is right, in the sentence.

Because “take off” could mean a plane, a career, or a jacket — context chooses.

Because “take off” could mean a plane, a career, or a jacket — context chooses.

Because “take off” could mean a plane, a career, or a jacket — context chooses.

Why Deepen doesn't translate first

Why Deepen doesn't translate first

Why Deepen doesn't translate first

English first, translate only when you need to.

English first, translate only when you need to.

English first, translate only when you need to.

Understanding in English is hard at first — but that’s where real growth begins. Most apps rush to translate.
In Deepen, you could stay in English, just a little longer.

Understanding in English is hard at first — but that’s where real growth begins. Most apps rush to translate.
In Deepen, you could stay in English, just a little longer.

Understanding in English is hard at first — but that’s where real growth begins. Most apps rush to translate.
In Deepen, you could stay in English, just a little longer.

Your ear learns first, your voice follows

Your ear learns first, your voice follows

Your ear learns first, your voice follows

Our brain processes sound patterns long before it produces speech.

Our brain processes sound patterns long before it produces speech.

Our brain processes sound patterns long before it produces speech.

Review expressions like a playlist.
Play, replay, and let the rhythm sink in — until it’s yours.

Review expressions like a playlist.
Play, replay, and let the rhythm sink in — until it’s yours.

Review expressions like a playlist.
Play, replay, and let the rhythm sink in — until it’s yours.

Small questions, lasting fluency.

Deepen gives you a space to stay in English, ask without pressure,
and understand in a way that sticks.
When learning feels safe and yours — you don’t stop.

1

Ask anytime

Like having a native tutor,

in your pocket.

2

Understand right there

Learn in English,

Translate when needed.

3

Own the expression

Practice naturally.

Until it becomes part of you.

Small questions, lasting fluency.

Deepen gives you a space to stay in English, ask without pressure,
and understand in a way that sticks.
When learning feels safe and yours — you don’t stop.

1

Ask anytime

Like having a native tutor,

in your pocket.

2

Understand right there

Learn in English,

Translate when needed.

3

Own the expression

Practice naturally.

Until it becomes part of you.

Small questions, lasting fluency.

Deepen gives you a space to stay in English, ask without pressure,
and understand in a way that sticks.
When learning feels safe and yours — you don’t stop.

1

Ask anytime

Like having a native tutor,

in your pocket.

2

Understand right there

Learn how Framer can optimize your site for search

3

Own the expression

Practice naturally.

Until it becomes part of you.

Be part of a growing Deepen community

Ask freely. Learn deeply.

You're not rushed here. Ask again. Ask better.

Start your questions here.

Be part of a growing Deepen community

Ask freely. Learn deeply.

You're not rushed here. Ask again. Ask better.

Start your questions here.

Be part of a growing Deepen community

Ask freely. Learn deeply.

You're not rushed here. Ask again. Ask better.

Start your questions here.

Learn through what moves you.

Deepen – your personal AI English dictionary.

Caldien Inc. © 2025

Learn through
what moves you.

Deepen – your personal AI English dictionary.

Caldien Inc. © 2025

Learn through what moves you.

Deepen – your personal AI English dictionary.

Caldien Inc. © 2025