Denshi Jisho — Online Japanese dictionary

四国 しこく Shikoku (smallest of the four main islands of Japan)
Noun 
四国稗 しこくびえ finger millet (Eleusine coracana)
Noun, Usually written using kana alone 
四国地方 しこくちほう Shikoku region (inc. Tokushima, Kagawa, Ehime and Kochi prefectures)
Noun 
四国遍路 しこくへんろ Shikoku pilgrimage (to the 88 temples); Shikoku pilgrim
Noun 
四国巡礼 しこくじゅんれい Shikoku pilgrimage (to the 88 temples); Shikoku pilgrim
Noun 
四国順礼 しこくじゅんれい Shikoku pilgrimage (to the 88 temples); Shikoku pilgrim
Noun 
四国八十八箇所 しこくはちじゅうはっかしょ 88 temples of Shikoku (holy spots related to Kobo Daishi)
Noun 

You can also

Look up kanji details for 四国.

Try a Yahoo Jisho search for 四国 .
Try a Goo Jisho search for 四国 .
Try a Google search for 四国 .