The Signs and Cues app has a vocabulary dictionary for ASL Sign Language, Cued Speech, or Fingerspelling; and also has example sentences dictionary for ASL signing. Some words have yellow tabs, which means the "explanation" tab can be clicked to get an explanation of the word.
Signs and Cues combines the words from SignCueQuest, The ASL Adventure Game with YouTubes "ASL Word of The Day" and "Cued Speech Word of The Day" videos in a handy dictionary. There are more than 6,000 signing video clips and more than 1500 cueing video clips.
*** Signs and Cues needs an internet connection to run.