It gives you quick substitutes for over 16,000 most popular Spanish words.
EditByBSEditor: This simple and convenient Lexicon will give you quick substitutes for over 16,000 most popular Spanish words. It does not provide Lexical information about the source word nor the synonyms, though, so depending on your level of knowledge in Spanish it may be of more or less use.

Spanish Monolingual Lexicon Features:
-The full version contains over 60, 000 Spanish Synonyms in 630 kB
-Expandable with a huge selection of other BDicty compatible dictionaries.
-For FASTER download, the downloadable demo lexicon contains only words starting with A, B and C, but provides a good representation of the lexicon quality.

BDicty Dictionary Reader Features:
-Specialized for reference content (dictionaries), resulting in simplified interface and improved speed
-Hundreds of language, specialized and entertainment dictionaries and phrasebooks, including free ones; if you cant find your dictionary let us know!
-Available on other mobile platforms (Windows CE / Pocket PC, Linux / Sharp Zaurus)
-Instant lookup from within any other application*
-Extendable with custom articles*
-Standard travel phrasebooks*
-Unlimited unidirectional dictionaries
-Excellent data compression
-Dictionary browsing with dynamic word positioning
-True support for MMC, SD, & MemoryStick external memory storage cards to reduce demand on valuable device memory
-Tested on the whole family of Palm OS devices, up to Palm OS 5.0 (including Clie series and Palm Tungsten models)
-Adjustable font sizes
-Horizontal / Vertical views
-Smart view
-Most Recently Viewed words list
-Word of the Day
-Free software updates**
-Download availability online
-Rich documentation you can free download Spanish Synonyms Dictionary for Palm OS 2.0 now.