join in

Also found in: Dictionary, Thesaurus, Idioms, Encyclopedia, Wikipedia.
References in classic literature ?
The dancers followed, and all through the grounds the picnic parties left their tables to join in.
As ObjectWeb is becoming the natural home ground for open source middleware, we encourage all stakeholders to join in and contribute to Celtix or complementary ObjectWeb projects.
Dominic Streeter, of Join In, said volunteers were crucial in helping to develop the Geoff Parlings of tomorrow.