in computer searches (e.g. using a search engine), an item found to match the specified search conditions
in music, any song that makes the top 40 of the charts
in genetic programming and other computer science optimisation techniques, a program scores a hit when its output is sufficiently close or equal to the target value for a particular test input; in some problems a program's fitness may be given by the number of hits it collects when run on the entire test set