Denshi Jisho — Online Japanese dictionary

喜ぶ よろこぶ 1: to be delighted; to be glad; to be pleased;
2: to congratulate;
3: to gratefully accept
Common word, Godan verb with bu ending, Intransitive verb 

You can also

Look up kanji details for 喜ぶ.

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