Do you know best free English to English dictionary?

i have to study finnish but i am not so good i used alot of dictionaries but none of them helped me so i might think that u can pls if u know the best dictionary. I speak finnish now but i need more so if u know it tell me and if u know aloso a good...

I need to know the meaning of a few (well, many, actually) cantonese phrases. Is there a online cantonese (written in chinese characters) to English dictionary or tranlation site? I'm Japanese so I sort of understand the meaning of individual characters...

Hi: Many years ago I had a windows application called Dr. Mouse and I'm looking for something similar for the Macintosh. With Dr. Mouse you could point to a Japanese word in just about any application with the cursor, hit a hot key and it would look...

i am a native speaker and i find there's a lot of english words that i dunno, so how could i learn the words and speak as english as good as europeans and americans when all my friends and relatives seldom speak english ?

I looked on a few search engines but I couldn't really find any good one's, I need help finding a Pakistani-English dictionary, if someone could please help me find one i'd appreicate it, thanks

a dictionary which can translate english sentences to afrikaans in the correct order or something like that

Has it ever been proven either way whether it's possible to memorize all the words and definitions in a typical English dictionary?

Engineering and computer terms from English language into Arabic language.

Or something close to one? Thx in advance ♥ p.s. I know some Latin, but it's abit rusty.