- monkey wrench
- monobucket excavator
- monochord
- monogenic
- monolith
- monolithic
- monolithic beam
- monolithic frame
- monolithic slab
- monolithic structure
- monolithism
- monomial hoist
- monorail
- monorail carriage
- monthly certificate
- Monthly Payments
- monument
- monument certificate
- monument conservation
- monument falsification
- monument ranking
- monument rebuilding
- monument reconstruction
- monument relocation
- monument repair
- monument shifting
- monument value
- monumental
- moon
- moor canal
- moor dragline
- moorage
- mooring appurtenances
- mooring float
- mooring ring
- moraine belt
- moratorium
- more than
- morgue
- mortar admixture
- mortar box
- mortar flow
- mortar joint
- mortar lorry
- mortar mix
- mortar pan
- mortar plasticity
- mortar pouring
- mortar sand
- mortar setting
- mortar spreader
- mortice chisel
- mortise chisel
- mortise lock
- mosaic facing
- mosaic painting
- mosaic surface
- mother
- motion decomposition
- motor grader
- motor track
- motor vibrator
- motorized grader
- motorway
- mould sand
- moulded brick
- moulded floor
- moulded insulation
- moulding ogee
- mouldings
- mountain climate
- mountain creep
- mountain ridge
- mounting jig
- mouse pad
- movable carriage
- movable part
- movable scaffolds
- move
- moving graphics
- moving jaw
- moving part
- moving stairs
- moving walk
- muck
- mucking out
- mud bailer
- mud cock
- mud cracking
- mud stream
- muddy sand
- mudflow
- multi paste
- moorland
- moral incentives
- morphological pattern
- morphology
- mortar base
- mortar nest
- mortar pocket