arborist

blade

chain

chainsaw

chopping

climbing

construction

cut

cutter

cutting

danger

deforest

down

engine

environment

equipment

forest

forestry

harness

log

lumber

lumberjack

machine

man

oak

outdoors

power

professional

protection

safety

saw

sawing

sharp

sky

timber

tool

tree

trunk

uses

wood

woodcutter

work

worker