Meaning of “tap into sth” - Learner’s Dictionary

tap into sth

phrasal verb with tap uk us /tæp/ verb (present participle tapping, past tense and past participle tapped)

to use part of a large supply of something for your own advantage:

We're hoping to be able to tap into this rich store of data.

(Definition of “tap into sth” from the Cambridge Learner’s Dictionary © Cambridge University Press)