iOS 11 and later include a neat built-in dictionary feature that lets you quickly look up the definition of words on your iPhone or iPad, even if an internet connection is unavailable.

It's a handy recourse if someone breaks out a "big word" during a conversation, or you come across an expression in a book or on the web that you don't quite understand.

dictionary in ios11
There are a couple of ways to access the dictionary which we've outlined below. Keep them in mind, and with a little luck, you won't have to consult a physical dictionary, a third-party dictionary app, or an online definition service the next time you want to know the meaning of a word.

How to Get a Word Definition

  1. On your iOS device, swipe right on the Lock screen or Home screen to display the Today view. Alternatively, swipe down on the Home screen to invoke the Search screen.

  2. Tap the search field if it isn't already active, and begin typing the word that you want to define. (You can also tap the microphone icon and say the word – if you know how to pronounce it.)

  3. Read the dictionary definition preview that appears in the search results, or tap it to see the extended definition.

ios 11 dictionary 1
In our experience, these definitions can occasionally get mixed up with Wikipedia suggestions from Siri. If you want to increase the chances that you get a dictionary definition first, go to Settings -> Siri & Search and toggle off Suggestions in Search.

How to Look Up a Word Within an App

If you come across a word you don't know in a document or email, or even when browsing the web, use the following method to look up its definition.

  1. Tap and hold your finger on the word to highlight it.

  2. Tap Look Up in the pop-up menu.

  3. Read the dictionary definition preview that appears in the Look Up results, or tap it to see the extended definition.

ios 11 dictionary look up 1
If you don't see any word definitions in the search results, it's likely you haven't got any dictionaries installed on your iOS device.

To remedy this, scroll down to the bottom of the results screen and tap Manage Dictionaries. You'll be presented with a list of dictionaries available to you. Simply tap the ones you want to download and they'll be automatically installed on your device.

ios 11 dictionary lookup 2
The next time you look up a word, you'll get individual definitions from every dictionary that's installed. Note that you can add and remove dictionaries at any time by ticking/unticking them in Settings -> General -> Dictionary.

Finally, if you're seeking a more feature-rich lexical resource to explore words and phrases, check out the Terminology app for iPhone and iPad. [Direct Link]

Top Rated Comments

ignatius345 Avatar
99 months ago
These how to guides are becoming spam when you have nothing else to report. Keep all this in one section so it doesn’t mix with actual rumors and news
More interesting and useful than a story about Carpool frickin’ Karaoke, thanks.
Score: 8 Votes (Like | Disagree)
unsharptooth Avatar
99 months ago
More interesting and useful than a story about Carpool frickin’ Karaoke, thanks.
Seriously, I want this kind of post. I moved to macOS like 6 months ago and iOS not even 2 years ago.
Score: 7 Votes (Like | Disagree)
AMTYVLE Avatar
99 months ago
Didn't know this. I hardly use the Search function on iOS. Thanks for this handy information!

....I also just found out the other day the Notes app can act as a document scanner. I told a bunch of people this when I found out, and they also didn't know. Apple should promote these functions more than they do.
Score: 5 Votes (Like | Disagree)
IJ Reilly Avatar
99 months ago

[LIST=1]
* Tap the search field if it isn't already active, and begin typing the word that you want to define.

You aren't defining the word, the dictionary is defining the word. You are looking up the definition.

And that's the definition of define. You could look it up.
Score: 5 Votes (Like | Disagree)
Aluminum213 Avatar
99 months ago
These how to guides are becoming spam when you have nothing else to report. Keep all this in one section so it doesn’t mix with actual rumors and news
Score: 5 Votes (Like | Disagree)
sully54 Avatar
99 months ago
I wish Apple would expand the dictionary on iOS to include a thesaurus like it does in macOS.
Score: 4 Votes (Like | Disagree)

Popular Stories

AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
CarPlay Pinned Messages

iOS 26.2 Adds New CarPlay Setting

Thursday November 13, 2025 6:48 am PST by
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose. Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
Tesla Charging

Tesla Working to Add Apple CarPlay Support to Vehicles

Thursday November 13, 2025 8:31 am PST by
Tesla is working to add support for Apple CarPlay in its vehicles, Bloomberg's Mark Gurman reports. Tesla vehicles rely on its own infotainment software system, which integrates vehicle functions, navigation, music, web browsing, and more. The automaker has been an outlier in foregoing support for Apple CarPlay, which has otherwise become an industry standard feature, allowing users to...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
homepod mini thumb feature

New HomePod Mini, Apple TV, and AirTag Were Expected This Year — Where Are They?

Wednesday November 12, 2025 11:42 am PST by
While it was rumored that Apple planned to release new versions of the HomePod mini, Apple TV, and AirTag this year, it is no longer clear if that will still happen. Back in January, Bloomberg's Mark Gurman said Apple planned to release new HomePod mini and Apple TV models "toward the end of the year," while he at one point expected a new AirTag to launch "around the middle of 2025." Yet,...
iOS 26

iOS 26.2 Available Next Month With These 8 New Features

Tuesday November 11, 2025 9:48 am PST by
Apple released the first iOS 26.2 beta last week. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date....
m1 chip slide

Five Years of Apple Silicon: M1 to M5 Performance Comparison

Monday November 10, 2025 1:08 pm PST by
Today marks the fifth anniversary of the Apple silicon chip that replaced Intel chips in Apple's Mac lineup. The first Apple silicon chip, the M1, was unveiled on November 10, 2020. The M1 debuted in the MacBook Air, Mac mini, and 13-inch MacBook Pro. The M1 chip was impressive when it launched, featuring the "world's fastest CPU core" and industry-leading performance per watt, and it's only ...
walmart new ornametns

Walmart Black Friday Deals Begin Today With Low Prices on Headphones, TVs, and More

Friday November 14, 2025 7:55 am PST by
Walmart's Black Friday sale has officially kicked off today, with an online shopping event that's also seeing some matching deals in retail locations. There are quite a few major discounts in this sale, including savings on headphones, TVs, and more. Note: MacRumors is an affiliate partner with Walmart. When you click a link and make a purchase, we may receive a small payment, which helps us...
iOS 26

Everything New in iOS 26.2 Beta 2

Wednesday November 12, 2025 3:29 pm PST by
Apple today provided developers with the second beta of iOS 26.2, which adds a few new features worth knowing about. Measure App Apple's Measure app now features a Liquid Glass design for the level, with two Liquid Glass bubbles instead of white circles. Games App There's now an option to sort games in the Games app Library by size, in addition to Name and Recent. CarPlay The...