Denshi Jisho — Online Japanese dictionary

一杯 いっぱい 1: amount necessary to fill a container (e.g. a cupful, spoonful, etc.); a drink (i.e. an alcoholic beverage);
2: full;
3: one squid, octopus, crab, etc.; one boat;
4: ()
5: (Usually written using kana alone) fully; to capacity;
6: (Usually written using kana alone) a lot; much; () (Usually written using kana alone) all of ...; the entire ...
Common word, Na-adjective, Adverb, Noun, No-adjective 
一杯食う いっぱいくう to be deceived
Expression, Godan verb with u ending 
一杯機嫌 いっぱいきげん slight intoxication
Noun, No-adjective 
一杯呑屋 いっぱいのみや cheap drinking spot (pub, tavern, etc.)
Noun 
一杯飲屋 いっぱいのみや cheap drinking spot (pub, tavern, etc.)
Noun 
一杯食わす いっぱいくわす to play a trick on
Godan verb with su ending 
一杯飲み屋 いっぱいのみや cheap drinking spot (pub, tavern, etc.)
Noun 
一杯一杯 いっぱいいっぱい 1: one cup after another; cup by cup;
2: to the limit; to the fullest extent; absolutely the limit; the best one can do; breaking even
Na-adjective, Adverbial noun, Noun 
一杯食わされる いっぱいくわされる to be taken in; to be duped; to be deceived
Expression, Ichidan verb 

You can also

Look up kanji details for 一杯.

Try a Yahoo Jisho search for 一杯 .
Try a Goo Jisho search for 一杯 .
Try a Google search for 一杯 .