Denshi Jisho — Online Japanese dictionary

強い つよい 1: strong; powerful; mighty; potent;
2: resistant; resilient; durable
Common word, Adjective 
強い こわい 1: tough; stiff; hard;
2: inflexible; obstinate; stubborn
Adjective 
強い しいて by force
Common word, Adverb 
強い しいる to force; to compel; to coerce
Common word, Ichidan verb, Transitive verb 
強い しいざかな side dish served in order to encourage the consumption of alcohol (kaiseki cuisine)
Noun 
強いられて しいられて under compulsion; by pressure of
Expression 
強い つよいこころ stout heart (mind)
Noun 
強い つよいところ strong point
Noun 
強いて言えば しいていえば if I'm forced to say something; if anything
Noun 
強い相互作用 つよいそうごさよう strong interaction
Noun 

You can also

Look up kanji details for 強い.

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