boots

break

builder

building

circular

concept

concrete

construction

cropper

cropping

cut

cutter

cutting

damage

deep

demolish

destroy

development

disc

electric

engineering

equipment

estate

fire

foundation

hand

industrial

infrastructure

instrument

labor

laborer

leg

machine

man

occupation

operation

people

person

pile

piles

piling

process

real

removal

remove

rubber

saw

site

spark

structure

tool

trimming

uniform

work

worker

wreck