WordFrequency
WordFrequency[text, word] gives the frequency of word in text.
WordFrequency[text, {word1, word2, ...}]gives an association of the frequencies of each of the wordi.
This function calculates how often words appear in text as a fraction of total words.
Examples
WordFrequency["the cat and the dog", "the"]WordFrequency[ExampleData[{"Text", "AliceInWonderland"}], "Alice"]WordFrequency["hello world hello", {"hello", "world"}]*See the official Wolfram Language Reference for more details.