Turn-up
Turn-up turns up in 2 fields: paper optics, maritime. Here is what it means to the people in each one.
Turn-up in paper optics
Transfer of the running sheet from a full reel spool onto a new empty one at the paper machine reel.
At turn-up a new spool is brought against the reel drum and the sheet is cut and started on it, using air, a tape strip or a cutting device. A clean turn-up loses only a few wraps; a bad one causes a break or a wad of broke on the floor. It is also when the dry-end crew pulls the reel sample for the lab.
"Grab a sample at the next turn-up, the lab wants a fresh pad for brightness."
Turn up in maritime
To secure a rope by wrapping it around a cleat or belaying pin.
To turn up a line means to make it fast by taking wraps around a cleat, bitt, or belaying pin so it holds tension. The process usually involves a round turn followed by a series of figure-eight wraps, finishing with a locking hitch. It allows a sailor to secure a heavily loaded line quickly without tying a complex knot.
"Haul the halyard taut and turn it up on the starboard pin rail."