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3. tap into

tap into

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tap something into something

 and tap something in

to move something in with light blows. The mechanic tapped the bracket into place. The worker tapped in the bracket.

See also: tap

tap into

v.

1. To gain access to some resource: The building tapped into the city's water supply.

2. To take advantage of some sentiment: The politician tapped into voter anger and won the election.

See also: tap