This python program will look in a local corpus and append word frequency descriptions to the end of the pera-pera definitions.
Note: this only works for firefox at the moment.
200:'very basic', #1-477 = 500 cum 500
100:'basic', #477-1016 = 500 1000
50:'very common', #1017-2060 = 1000 2000
25:'common', #2060-3760 = 1700 3700
13:'uncommon', #3760-6313 = 2600 6300
7:'rare', #6300-10050 = 3750 10000
2:'very rare', #10500-18600 = 8100 18000
0:'obscure'} #18600-50000 = 31400 50000
I picked these after some experimentation and they can be modified. For intermediate students, memorizing very rare or obscure words is pretty useless unless it's your field of specialization.
And in general it's not efficient to spend time memorizing words which appear 1 time per million words when there are words that appear 50 times/ mil which you don't know.
https://addons.mozilla.org/en-us/firefox/addon/perapera-kun-chinese-popup-tra/
It is an awesome add-on for firefox which pops up a definition for chinese words when you mouse-over them.
The corpus is compiled from a bunch of internet sources & seems fairly accurate to what I've read. It's a lot better than the business / news derived ones I've read.
Download modified-dict.sqlite which already has the frequency descriptions.
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close firefox
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find your firefox folder something like
c:\users\<username>\AppData\Roaming\Mozilla\Firefox\Profiles\<random name>.default\extensions\chineseperakun@gmail.com -
copy the modified-dict.sqlite file in there
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rename the existing one
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rename the new one to dict.sqlite
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test it - it should work immediately after you restart firefox
I also included the script to modify the dictionary in place, but most of the time that'll be unnecessary to use.