Denshi Jisho — Online Japanese dictionary

喚く わめく to shout; to cry; to scream; to clamour
Common word, Godan verb with ku ending, Intransitive verb, Usually written using kana alone 
叫く わめく to shout; to cry; to scream; to clamour
Godan verb with ku ending, Intransitive verb, Usually written using kana alone 
がくがく outspoken
Na-adjective, Noun, No-adjective 
がくがく outspoken
Na-adjective, Noun, No-adjective 

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