Have a finger in and Sit-in

Sit-in and have a finger in are semantically related. In some cases you can replace phrase "Sit-in" with "Have a finger in", this terms are similar.

Sit-in noun - A form of civil disobedience in which demonstrators occupy seats and refuse to move.

Have a finger in and sit-in are semantically related. Sometimes you can use "Have a finger in" instead a verb phrase "Sit-in".