LOOKUP DICTIONARY — VERSION 1, FIRST TEST RELEASE
Windows 11. Free. Fully offline after installation.

INSTALL
1. Download LookUp-Windows11-v1.zip.
2. In File Explorer select the ZIP, press Shift+F10, and choose Extract All. Complete extraction.
3. Open the extracted LookUp folder.
4. Select Install LookUp.cmd and press Enter.
5. LookUp opens with focus in a blank word box. Desktop and Start Menu shortcuts are created.
No Python, account, subscription or further dictionary download is required. Uses the .NET Framework supplied with Windows 11. No administrator rights are needed.

USE
Type a word or its first few letters. Matching words appear as you type.
Down Arrow enters the matching-word list. Up/Down select words and load definitions. Enter chooses and moves to definitions.
Page Down in the list loads another 200 matches. Type more letters to narrow results.
Compound words and phrases can include spaces or hyphens, for example ice cream or mother-in-law.
An exact typed word loads automatically.

TAB ORDER
1. Word or compound word.
2. Definitions, read only. Use Up/Down to read lines with your screen reader. Ctrl+Home returns to the beginning. Normal selection and Ctrl+C work.
3. Copy definition to clipboard. Enter or Space copies all displayed senses and their attribution, and opens a confirmation.
The matching-word list stays outside the Tab order. Down Arrow from the word box opens it; Escape returns to the box.
Copy is available once a definition is loaded.

LOOKUP FROM ANOTHER PROGRAM
Ctrl+Alt+L first tries selected text or the word at a text cursor exposed through Windows UI Automation. Where supported it selects that word. Otherwise it tries copying already selected text with Ctrl+C and restoring the previous clipboard when possible.
For JAWS virtual cursors, PDFs, browsers, or unsupported apps, select the desired word first. A JAWS reading cursor is not always the application's text cursor. Select the whole compound phrase before pressing Ctrl+Alt+L.
LookUp sends no word-selection movement keys into the source program. If capture fails, the word box opens blank and reports the problem; type the word there.
No tool can capture every word in every Windows app. Administrator-level programs may restrict capture.
Escape hides LookUp and returns to the source program when possible.

OTHER KEYS
Ctrl+N: new blank lookup.
F1: keyboard help.
Escape or Alt+F4: hide LookUp; its hotkey stays active.
Alt+F, then Exit LookUp: quit completely. Open the desktop shortcut to restart.
LookUp starts quietly when you sign in, so Ctrl+Alt+L is normally ready without opening the window first.
If another app already uses Ctrl+Alt+L, LookUp reports the conflict; its desktop shortcut still works.

DICTIONARY
1,355,279 searchable entries after case variants are grouped; 1,491,729 source records with definitions.
English Wiktionary via Kaikki.org, extracted October 3, 2026 from the September 2, 2026 dump.
Definitions, parts of speech and usage labels retained. Media, quotations and etymologies omitted to reduce size. Inflected and compound entries are included where supplied by the source. Some entries refer to a base word; look up that word for its meaning.
Wiktionary is community edited and contains proper names, obsolete terms, slang and adult vocabulary.
This is a very large free dictionary; it has not been established as the absolute largest database available.
See Dictionary-Credits.txt and CC-BY-SA-4.0.txt for sources and reuse terms.

UNINSTALL
Run Uninstall LookUp.cmd in:
%LOCALAPPDATA%\ListeningAcuity\LookUp

VALIDATION
The Windows executable is compiled. Full index order and data bounds, exact lookup, case matching, compound words, prefix paging and unknown words are checked.
Live Windows 11 keyboard capture and JAWS/NVDA behavior still require testing on a Windows computer. Please report which source program you used if capture fails.
