plural of hidden city

(computing, Internet) Deep Web

plural of hidden variable

plural of hidden tax

(machine learning) The layer or layers of neurons between the input layer and the output layer in a neural network.

past participle of hide behind

(business) A relatively small and little-known but highly successful company.

plural of hidden champion

(Latin, phonetics) The pronunciation (long or short) of a vowel that appears before two consonants. / Used other than figuratively or idiomatically: see hidden, quantity.

A census-designated place in San Diego County, California, United States.