A good dictionary is one of the most important tools for Spanish students.
There is a great selection of free dictionaries available
online, but it's also a good idea to have a program or two on your
computer and maybe even an old-fashioned paper copy for your desk.
you spend most of your time on the computer, dictionary software is a
much better option than a book. Word Magic's
Spanish dictionary and tools is an excellent suite of programs,
including translations, idioms, synonyms, antonyms, and verb
conjugations. You can search by word or by phrase, in Spanish and
The Harper Collins Robert hardcover includes more than 130,000 entries. It
lists both American and British English, and indicates whether terms are
specific to certain regions of the Spanish-speaking world.
Harper-Collins Spanish Dictionary
If the above dictionary is too big for your purposes,
there is a pocket version by the same publishers. It includes the same
features as the hardcover, but is considerably smaller, with about
Harper-Collins Pocket Spanish Dictionary
If you are serious about becoming fluent in
Spanish, you'll need to invest in a Spanish-only dictionary: get into
the habit of looking things up and reading the Spanish definition,
rather than looking up translations.
El Diccionario de la Lengua española