Not just a dictionary.A livinglanguage guide.

The smartest dictionary ever built. Get instant, contextual definitions for any word—from ancient literature to today's slang.

Vocabulary tips & insights

Try Adinary Now

Available on mobile

Adinary

AI Dictionary

Ephemeral

(adj.) Lasting for a very short time; transient.

🔥 Trending in literature discussions

Can you give me an example of how to use "ephemeral" in a sentence?

Here are some examples:

• "The ephemeral beauty of cherry blossoms lasts only a few days."

• "Fame can be ephemeral, especially in today's digital world."

Added to your vocabulary

Revolutionary Features

Why Adinary Stands Apart

Traditional dictionaries leave you hanging with outdated content. Adinary helps you truly understand modern language in context — from everyday vocabulary to the latest slang, internet phrases, and emerging idioms.

Feature	Traditional Dictionary	Adinary
Word definitions
Contextual examples
Find the exact word you're thinking of
Latest internet slang & idioms
AI-powered explanations
Ask follow-up questions
Spaced repetition learning
Progress tracking

Have Real Conversations About Language

Ask "How would a native speaker use this?" or "Show me examples in business contexts" and watch understanding unfold.

Stay Current with Modern Language

Learn internet slang, trending phrases, and emerging idioms that traditional dictionaries simply don't include.

See Your Language Growth in Real-Time

Watch your vocabulary expand with visual progress tracking and celebrate your language milestones.

AI-Powered Contextual Learning

Our advanced AI understands context and provides explanations tailored to your learning level and goals.

Global Language Variations

Understand how words are used differently across regions, cultures, and professional contexts worldwide.

Instant Smart Definitions

Get intelligent, context-aware definitions that adapt to your situation and learning preferences.

Live App Preview

See Adinary in Action

Experience how our AI-powered dictionary transforms vocabulary learning into an engaging journey

2:41

Comprehensive Definitions

Deep Word Understanding

Get comprehensive definitions with real-world examples and contextual usage.

• 1 of 7

Try It Yourself

Get Adinary

Choose how to use Adinary

Preview the dictionary on the web, or install Adinary on iOS or Android.

Adinary is available on the web, iPhone, iPad, and Android. Subscription options are purchased in the mobile app.

Explore on the web

Open Adinary in your browser to preview the dictionary.

Open web preview

Get the mobile app

Choose your app store. Subscription options are available after you install Adinary.

Get it on Google Play Download on the App Store

Explore Adinary

Find words. Explore their meaning.

Describe an idea, ask about word choice, and revisit vocabulary in the app.

Find a word from an idea

Use Word Finder to describe what you mean and explore suggested words.

Ask about context

Ask follow-up questions about similar words, examples, and wording for your situation.

Revisit your vocabulary

Find stored definitions in Learn and review vocabulary with spaced-repetition practice.

Feature access depends on your plan. Practice requires sign-in.

Explore a dictionary example

Read the definition, example sentences, and nuance notes for “deference”.

Read the deference entry →

Published dictionary example. Interactive follow-ups and practice open in the app.

Explore your next word with Adinary

Look up a word, explore its context, and ask a follow-up question in Adinary.

Open Adinary

Also available on iOS and Android: