Reference: dictionaryMatchWord

dictionaryMatchWord(s) searches the currently loaded dictionary (see loadDictionary) for entries matching the filter s, a string containing characters and the "_" placeholder. All entries matching this filter are returned, in a list (i.e., one-dimensional (vertical) string table). A word matches s iff it has the same number of characters as s, and the ith character in s is equal to the "_" placeholder or to the ith character in the word, for all i.

Examples: dictionaryMatchWord("g__ta_")
           geotag
           gluta-
           guitar

          dictionaryMatchWord("_______________________________________")
           Federal Democratic Republic of Ethiopia
           acute necrotising ulcerative gingivitis
           acute necrotizing ulcerative gingivitis
           born with a silver spoon in one's mouth
           cut one's coat according to one's cloth
           defense-independent pitching statistics
           discretion is the better part of valour
           hepaticocholangiocholecystenterostomies
           if my aunt had balls, she'd be my uncle
           it's not what you know but who you know
           out of the frying pan and into the fire
           pairwise linkage disequilibrium diagram
           program evaluation and review technique
           project evaluation and review technique
           selective serotonin reuptake inhibitors
           serum glutamic oxaloacetic transaminase
           there's more than one way to skin a cat
           transmissible spongiform encephalopathy
           well ain't that the catfish in the trap