This "dictionary" will never be comprehensive; I do not have the resources for that.
The motivation for posting what I call a "less-terse" dictionary for olim is that I often found with many of the well-known English/Hebrew and Hebrew/English dictionaries, even after looking up and finding a word's translation, I still was not sure what it meant due to the several meanings of the word given as the translation. In this dictionary, I will try to use such simple tools such as giving multiple words for the translation, or using the translated word in a sentence, in order to give you a better feel for what the proper translation is.
This, and even the Hebrew-English dictionary, will be geared to the English-speaker trying to function in Hebrew. I do not know enough to help the Hebrew-speaker function in English. Also, this likely will be most helpful to the relatively new oleh - It shouldn't take you long to surpass me.
Antonyms (חפכים) are here.
Helpful building terms (דברי בניה) are here.
Colors (צבעים) are here.
Animals (בַעַלִי-חַיִים) are here.