Denshi Jisho — Online Japanese dictionary

正月 しょうがつ New Year; New Year's Day; the first month; January
Common word, Noun 
正月太り しょうがつぶとり putting on weight over the New Year's holidays
Noun 

You can also

Look up kanji details for 正月.

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