Additional dictionaries for Mozc

(last updated: 20160125)


Mozc NEologd UT Dictionary (20160125)
Mozc UT Dictionary (20160125)
Note: You can't use these dictionaries at the same time.

Mozc NEologd UT Dictionary

I modified mecab-ipadic-NEologd's "user-dict" for Mozc.

The "user-dict" will be updated twice per week(!) (Monday and Thursday) automatically.
mecab-ipadic-NEologd was written by Toshinori Sato (@overlast).
Thank you so much!

mozcdic-neologd-ut will add over 850,000 words (Note: 50% of them are placenames).

■ Download
Patched source code:
It includes zip code data.
e.g. "110-0001" is converted to "東京都台東区谷中".


■ Install
See mozc's official "LinuxBuildInstructions".

If you are using Arch Linux (tested on Antergos Linux),
you can make and install packages as follows:
$ mkdir mozc-tmp
$ mv mozc-neologd-ut-2.17.2315.102.20160125.1.tar.xz mozc-tmp/
$ cd mozc-tmp/
$ tar xf mozc-neologd-ut-2.17.2315.102.20160125.1.tar.xz
$ cp mozc-neologd-ut-2.17.2315.102.20160125.1/PKGBUILD .
$ makepkg -f
$ makepkg -i

■ Advanced: Generate your mozc-neologd-ut
1. Get the latest mecab-user-dict-seed.*.csv.xz

2. Put it into mecab-ipadic-neologd/
$ rm mecab-ipadic-neologd/mecab-user-dict-seed.20160125.csv.xz
$ mv mecab-user-dict-seed.*.csv.xz mecab-ipadic-neologd/

3. Get the latest Mozc
$ ./
$ mv mozc-*.tar.bz2 ..

4. Change version numbers
$ leafpad
Change "MOZCVER" and "DICVER" numbers.

5. generate mozc-neologd-ut
$ ./

Mozc UT Dictionary

This will add over 350,000 words.

I modified these dictionaries.
My big thanks go to the authors/maintainers.

■ Dictionaries enabled by default
+ alt-cannadic
+ Japanese names (I wrote it)
+ hatena keywords
+ station names

+ katakana-English dictionary generated from EDICT
いんたーねっと ⇨ Internet
If you don't want to use it, run
$ /usr/lib/mozc/mozc_tool --mode=config_dialog
and uncheck "Katakana to English conversion" in "Dictionary" tab.

+ zip code dictionary and place names generated from Japan Post's zip code
920-2368 ⇨ 石川県白山市出合町
はくさんしで ⇨ 白山市出合町 will be suggested.
If you need the latest zip code and place names,
apply the mozcdic-ut patch to the official Mozc.
⇨ See "Advanced".
It will download the latest Japan Post's zip code file.

■ Dictionaries disabled by default (See also "Advanced")
+ English-Japanese dictionary generated from Japanese WordNet
Press Caps Lock and type "dolphin" and Tab.

If you need a human readable dictionary, check this page.

+ niconico daihyakka IME dictionary

■ Download
Patched source code (EJDIC="false", NICODIC="false"):


■ License
altcanna, jinmei, skk: GPL
hatena: unknown
EDICT: Creative Commons Attribution-ShareAlike Licence (V3.0)
ekimei: redistributable
zip code: public domain
Japanese WordNet:
niconico: unknown
ruby/shell scripts: GPL

I think we can redistribute hatena's yomigana-hyouki pairs,
but I can't believe we can redistribute niconico's pairs.
If you want to make redistributable mozc-ut,
keep #NICODIC="true" in

■ Install
See mozc's official "LinuxBuildInstructions".

If you are using Arch Linux (tested on Antergos Linux),
you can make and install packages as follows:
$ mkdir mozc-tmp
$ mv mozc-ut-2.17.2315.102.20160125.tar.xz mozc-tmp/
$ cd mozc-tmp/
$ tar xf mozc-ut-2.17.2315.102.20160125.tar.xz
$ cp mozc-ut-2.17.2315.102.20160125/PKGBUILD .
$ makepkg -f
$ makepkg -i

■ Advanced: Generate your mozc-ut
1. Get official mozc source files.
$ mkdir mozc-tmp
$ mv mozcdic-ut-20160125.tar.bz2 mozc-tmp/
$ cd mozc-tmp/
$ tar xf mozcdic-ut-20160125.tar.bz2
$ cd mozcdic-ut-20160125
$ ./
$ mv mozc-2.17.2315.102.tar.bz2 ..

2. Select optional dictionaries.
Open "".

If you want to use an English-Japanese dictionary,
uncomment the following line.

If you want to use a niconico dictionary,
uncomment the following line.

3. Generate a mozc-ut dictionary.
You need ruby > 1.9.
$ ./
Wait for a few minutes.

4. Install mozc-ut.
$ cd ../mozc-ut-2.17.2315.102.20160125/
Build mozc-ut.

Mozc UT Dictionary

■ 内容

■ 収録基準


■ 辞書の形式
読み 品詞 ヒット数 表記