Denshi Jisho — Online Japanese dictionary

聞く きく 1: to hear;
2: to listen (e.g. to music);
3: to ask; to enquire; to query
Common word, Godan verb with ku ending, Transitive verb 
聞く耳 きくみみ acute ear; good ear
Noun 
聞く耳をもたぬ きくみみをもたぬ to turn a deaf ear to; to not listen to; to not get the message
Expression 
聞く耳を持たぬ きくみみをもたぬ to turn a deaf ear to; to not listen to; to not get the message
Expression 
聞く耳をもたない きくみみをもたない to turn a deaf ear to; to not listen to; to not get the message
Expression 
聞く耳を持たない きくみみをもたない to turn a deaf ear to; to not listen to; to not get the message
Expression 
聞くと見るとは大違い きくとみるとはおおちがい A big difference between what one hears and what one sees
Expression, Idiomatic expression 
聞くは一時の恥聞かぬは末代の恥 きくはいっときのはじきかぬはまつだいのはじ Better ask than go astray
Expression, Idiomatic expression 

You can also

Look up kanji details for 聞く.

Try a Yahoo Jisho search for 聞く .
Try a Goo Jisho search for 聞く .
Try a Google search for 聞く .