action

activity

ancient

angle

asphalt

blade

block

boulders

builder

building

buildings

business

cement

ceramics

chisel

circular

concrete

construction

contractor

crowbar

cut

cutter

danger

diamond

dust

equipment

grinding

industrial

industry

infrastructure

job

machine

maintenance

man

people

person

power

reconstruction

repair

road

saw

sawing

site

stone

tool

using

wheel

work

worker

workplace