Wiktionary
vb. (en-third-person singularjoin up)
Usage examples of "joins up".
The river goes on another fifteen, twenty miles before it switches back to the north and joins up with the Humboldt River according to Hoyle.
They fly right into the raging battle, which eventually joins up with the fight between Wedge and Daala at Maw Installation.
What it works out to is that Karen Landy, and probably the Triumvirate as well, doesn't give a hoot if the IBI joins up in the Subversive Party or not.
Leaving the Pyramid, the visitor is obliged to ape-walk uncomfortably down the Ascending Corridor until the point where it joins up with ‘.
A bone bruise, and a small bone cyst, under the end of the first metatarsal, the bone in the foot which joins up with the base of the big toe.
As it is almost every volunteer brings along his own gun when he joins up.
The sodium joins up with fractured water molecules to form sodium hydroxide.
Whether or not it joins up with the dungeons we know I can't make out from this map.
I've got a feeling it joins up with a trail I saw coming in from the south at Haystack Mountain.
When in waking the soul begins, with the help of the body, to imagine, to feel, and to will, it joins up in its memory with those experiences which took place before sleep on the basis of the physical organization.
Our hero winds up in the north, in Torvaldsland, and joins up with a Viking raider to do some marauding (hence the title).