Denshi Jisho — Online Japanese dictionary

しょうかん summons
Common word, Noun, Suru verb, No-adjective 
きょうかん shout; scream
Noun, Suru verb 
阿鼻叫 あびきょうかん agonizing cries; pandemonium; two of Buddhism's hells
Noun 

You can also

Look up kanji details for *喚.

Try a Yahoo Jisho search for *喚 .
Try a Goo Jisho search for *喚 .
Try a Google search for *喚 .