open up

Some vacancies have opened up due to retirements.

After three hours of questioning, he finally opened up.

As the convoy entered the pass, we opened up on them with everything we had.

The sky has really opened up. I've never seen this much rain!

The pigeon is moving as before with unhurried haste. … But it must be all out. If it wasn't, then it would open up and get away from that shadow of death behind it.

In stage acting, we are frequently asked to cheat out to the audience by opening up our body positions so that we are something halfway between facing them and our partner.