I hear terms being used that mean the same thing. Here is a list , which term do you prefer.
pruning vs trimming
climber/arborist vs tree trimmer
crown vs canopy
block vs pulley
notch vs pie
pole pruner vs pole clip
crown reduction vs shaping
spikes, hooks ,gaffs or spurs
removal, take down or wrecking
feel free to add to the list
Pruning is correct, trimming is what line clearance folks do
Arborist is not synonymous with climber and not all climbers are tree trimmers
Crown is the shape of the tree, the canopy is the part of the tree that the climber explores or defines the upper combination of crowns in a forest.
A block attaches to a sling with a non rotating sheave and a pulley has fixed ring (omni) or holes in the side plates (pinto)to accept a fastener or a sling. Either can be used in positive, negative, traverse, or mechanical advantage rigging.
I've never heard anybody refer to the face notch as a pie. A pie is cut radially, a face notch is cut tangentially.
Pole pruner, next!
Crown reduction is a form of shaping. Proper shaping includes solid structural or corrective pruning.
Call them whatever you want, they have a specific job - work positioning for a climber performing a dismantle.
Removal is when the entire tree is removed from a specific property. A take down or dismantle or wreck insinuates cut material remains on the property.
As soon as I stopped calling it a hand saw and started calling it a pruning saw I stopped cutting myself...
Reed Wortley
CTSP #01739
ISA CA #SO-6953A