Denshi Jisho — Online Japanese dictionary

避ける さける 1: to avoid (situation);
2: (Ichidan verb) to ward off; to avert
Common word, Ichidan verb, Transitive verb 
避ける よける 1: to avoid (physical contact with);
2: (Ichidan verb) to ward off; to avert
Common word, Ichidan verb, Transitive verb 

You can also

Look up kanji details for 避ける.

Try a Yahoo Jisho search for 避ける .
Try a Goo Jisho search for 避ける .
Try a Google search for 避ける .