Word Rover
Browse semantic connections in a word-web view, following one word into a whole family. Built for expanding vocabulary, not rote memorization.
Vocabulary
Look it up effortlessly. Remember it for good.
Lookup, saving, review, and assessment link up end to end. A word is no longer something you glance past — it comes back at just the right moment, based on how well you know it.
24
Built-in word books
120k+
Entries and examples
5
Mastery levels
Word Lookup
One lookup, and you take away a whole semantic network.
Definitions, pronunciation, collocations, synonyms, and real example sentences on one screen. Save a word in one click, and the sentence it came from comes with it.
- Definitions from multiple dictionaries, with word segmentation
- Synonym networks and common collocations
- The original sentence is kept with every lookup
Vocabulary Manager
It shows up exactly when it's time to review.
A mastery-based spaced repetition algorithm builds your daily queue. Words you've forgotten come back sooner, words you know drop back, and your time goes where it's genuinely needed.
- Dynamic scheduling across five mastery levels
- Filter by source, tag, and word book
- Review records can be exported and printed
Three more things to make vocabulary stick
Lookup and review handle remembering. These three handle actually using it.
Vocabulary Assessment
A dozen or so adaptive questions estimate your vocabulary size and turn it into what to learn next.
Word Books
24 built-in word books span middle school through GRE, and you can import your own lists and tag systems.
Common Shortcuts
Lookup and review happen constantly, so keyboard shortcuts save real time.
Quick lookup⌘ K
Save to word bank⌘ ⇧ A
Start today's review⌘ ⇧ R
Mark as learnedSpace
Open Word Rover⌘ ⇧ B
Pronounce⌘ ⇧ P
Start building
Learn 20 today.
The free edition includes the full vocabulary loop, with no account required.