1. Home
  2. Topics
  3. Nautical Dictionary

Best Nautical Dictionary Apps

149+ iOS apps curated and reviewed

4.5 avg rating
14 free apps
Updated May 2026

Nautical dictionary is the household name in nautical dictionary, but it's far from the only option. We track 149+ alternatives and competitors on iOS โ€” many free, many higher-rated than you'd expect.

Top Picks for Nautical Dictionary

Merriam-Webster Dictionary+#3

Merriam-Webster Dictionary+ by Merriam-Webster, Inc.

Premium Ad-free Dictionary
Worth Considering
๐Ÿ” Reference
4.8๐Ÿ˜Š(22K ratings)
$9.99Ads
#29in Reference
Merriam-Webster Dictionary+ screenshot 1
Merriam-Webster Dictionary+ screenshot 2
Merriam-Webster Dictionary+ screenshot 3
Merriam-Webster Dictionary+ screenshot 4

Access America's leading dictionary with over 15,000 extra entries for people and places. Enjoy offline access, voice search, and daily vocabulary builders. This app offers expert word guidance with a thesaurus and example sentences.

What We Love

  • ๐Ÿ‘ Clear and intuitive layout
  • ๐Ÿš€ Convenient offline access
  • ๐Ÿ” Comprehensive word definitions
  • ๐Ÿ”  Helpful thesaurus and word games

Room to Improve

  • ๐Ÿ› Frequent app freezes and crashes
  • โš ๏ธ Missing words and incomplete definitions
  • ๐Ÿ” Lack of spell-check and word suggestions

More Nautical Dictionary apps to explore

4
WordWeb Dictionary
WordWeb Dictionary
WordWeb Dictionary
Offline ad-free dictionary
Free

This app provides a comprehensive offline English dictionary and thesaurus with fast searching, spelling suggestions, definitions, and usage examples. It offers extensive word data and advanced search filters without requiring an internet connection.

Offline dictionary and thesaurusFast searchingSpelling suggestions
๐Ÿ” Reference
(85)
free
5
Advanced English Dictionary.
Advanced English Dictionary.
Advanced English Dictionary.
English Dictionary & Thesaurus
$2.99

This comprehensive English dictionary and thesaurus offers offline access to millions of words, definitions, pronunciations, and etymologies. Explore word connections, sample sentences, and discover new vocabulary with advanced search and unique features.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
๐Ÿ” Reference
(238)
paid
6
i-Boating: Marine Charts & Gps
i-Boating: Marine Charts & Gps
i-Boating: Marine Charts & Gps
Lake Maps & Fishing Spots
Free

Navigate waterways with detailed marine charts and GPS. Features include route planning, voice-guided navigation, tide and current predictions, and track recording. Offers extensive map coverage for various regions and inland rivers.

Detailed vector marine chartsRoute planning and editingVoice-guided navigation
๐Ÿ—บ๏ธ Navigation
(14K)
free with in-app purchases
7
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Marine GPS and Nautical Charts
Free

This app provides comprehensive marine navigation, integrating charts, weather, tides, and GPS tracking. It simplifies route planning and offers real-time safety data to ensure confident and enjoyable time on the water for various boating activities.

Clutter-free nautical chartsSmart route planning with weather and tide integrationReal-time GPS tracking
๐Ÿ—บ๏ธ Navigation
(7.4K)
free with in-app purchases
8
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
Advanced Dictionary&Thesaurus
English dictionary with Audio
Free

This comprehensive English dictionary and thesaurus offers precise definitions, synonyms, antonyms, and related words. It features intelligent search tools, offline audio, and customizable themes to enhance your language learning experience.

140,000+ definitionsSynonyms, antonyms, and related wordsOffline audio pronunciation
๐Ÿ” Reference
(4.3K)
free with in-app purchases
9
iNavX: Marine Navigation
iNavX: Marine Navigation
iNavX: Marine Navigation
Sailing & Boating Chartplotter
Free

This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.

Worldwide marine chart accessReal-time GPS plottingWaypoint and route management
๐Ÿ—บ๏ธ Navigation
(21K)
free with in-app purchases
10
Dictionary.
Dictionary.
Dictionary.
by TheFreeDictionary.com
Free

Access a comprehensive dictionary, thesaurus, and translation tool with millions of definitions and synonyms. Explore specialty dictionaries, learn new words daily, and play word games. This app offers offline access and integrates seamlessly with other applications.

Offline dictionary and thesaurusMillions of definitions and synonymsWord of the Day and Idiom of the Day
๐Ÿ” Reference
(14K)
free with in-app purchases
11
Maritime Terms & Dictionary
Maritime Terms & Dictionary
Maritime Terms & Dictionary
Maritime dictionary offline.
Free
๐Ÿ” Reference
(0)
12
Dictionary Linguee
Dictionary Linguee
Dictionary Linguee
German, French, Spanish, more
Free

Access reliable translations for multiple languages, including French, Spanish, and German, with this comprehensive dictionary app. It offers fast, offline access to a vast database compiled by lexicographers and includes example sentences and audio pronunciations.

Translations in French, Spanish, German, and moreCompiled by over 400 lexicographersFast translations with quick search
๐Ÿ” Reference
(11K)
free
13
Arabic Dictionary - ู‚ุงู…ูˆุณ ุนุฑุจูŠ
Arabic Dictionary - ู‚ุงู…ูˆุณ ุนุฑุจูŠ
Arabic Dictionary - ู‚ุงู…ูˆุณ ุนุฑุจูŠ
Best Offline Arabic Translator
Free

This offline dictionary provides bidirectional translation between Arabic and English, featuring over 100,000 words. It's ideal for travelers, students, and anyone looking to learn either language, offering flashcards and a user-friendly interface.

Offline bidirectional translationExtensive Arabic and English vocabularyFast search capability
๐Ÿ“š Books
(1.9K)
free with in-app purchases
14
Dictionary
Dictionary
Dictionary
in Widget
Free

Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.

Home Screen widget for instant lookupsNo app launch requiredQuick definitions
๐Ÿ” Reference
(4)
ad-supported
15
Concise English Dictionary
Concise English Dictionary
Concise English Dictionary
English Dictionary & Thesaurus
$0.99

Explore a vast English dictionary and thesaurus with detailed definitions, pronunciations, and word origins. Access over 591,700 entries and 4.9 million words, with offline capabilities and a user-friendly interface for enhanced language learning.

Comprehensive dictionary databaseHigh-quality audio pronunciationsExtensive IPA pronunciation guides
๐Ÿ” Reference
(30)
paid
16
Maritime Dictionary Offline
Maritime Dictionary Offline
Maritime Dictionary Offline
Complete Maritime Dictionary
Free

Access a comprehensive offline dictionary of maritime terms and vocabulary. Easily search, bookmark, and manage your maritime learning with thousands of entries available without an internet connection.

Offline access to all dataThousands of maritime termsSearch functionality
๐Ÿ“š Books
(2)
free
17
Advanced English Dictionary HD
Advanced English Dictionary HD
Advanced English Dictionary HD
English Dictionary & Thesaurus
$3.99

Access a vast English dictionary and thesaurus with millions of words, definitions, and pronunciations. Explore word origins, sample sentences, and discover connections with a unique conceptual thesaurus. Enjoy offline access and an ad-free experience.

Extensive word database (4.9 million words)High-quality audio pronunciations (US, UK, AU)Advanced search technology
๐Ÿ” Reference
(59)
paid
18
NAVER Dictionary
NAVER Dictionary
NAVER Dictionary
by NAVER Corp.
Free

Access a comprehensive collection of dictionaries, including English-English, English-Korean, and numerous bilingual options. Features include pronunciation evaluation, everyday conversation examples, and a user-created dictionary platform. All content is available for free.

70+ Dictionaries30M+ HeadwordsEveryday English Conversation
๐Ÿ“š Education
(247)
free with in-app purchases
19
American Heritageยฎ Dictionary
American Heritageยฎ Dictionary
American Heritageยฎ Dictionary
UniDictยฎ - 4th Edition (AHD4)
$12.99

Access a comprehensive digital dictionary with nearly 300,000 terms and thousands of sound files. Features include advanced search, etymology, and AI-powered tools for deeper understanding and language learning.

Full dictionary text33,000+ example sentences64,000+ recorded sound files
๐Ÿ” Reference
(189)
free with in-app purchases
20
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Navigation, Charts, Tides, Map
Free

Navigate waterways with detailed nautical charts, tide predictions, and weather forecasts. Connect with a community of boaters to share points of interest and track friends on the water. Enjoy simplified GPS navigation tailored to your boat's draft.

Simple GPS navigationCustomizable nautical chartsCommunity points of interest
๐Ÿ—บ๏ธ Navigation
(5.4K)
free with in-app purchases