Modifiers matching necessity:

• important,
• key,
• american,
• basic,
• elementary,
• japanese,
• mundane,
• biological,
• immediate,
• everyday,
• hygienic,
• vital,
• elemental,
• decorative,
• essential,
• simple,
• practical,
• common,
• modern,
• unsightly,
• medical,
• mechanical,
• standard,
• technological,
• interesting,
• usual,
• secure,
• home,
• rationed,
• biologic,
• agricultural,
• personal,
• up,
• small,
• physiological,
• operational,
• additional,
• useful,
• pure,
• civic,

Simple categories matching mechanical:

• property,
• converter,
• noisemaker,
• noise,
• equipment,
• part,
• dispersion,
• ground,
• obstruction,
• piano,
• means,
• condition,
• impairment,
• system,
• implement,
• contrivance,
• deficiency,
• job,
• device,
• feeder,
• deformation,
• devices,
• piece,
• fastener,
• housing,
• anchorage,
• production,
• cable,
• particle,
• element,
• structure,
• organs,
• collector,
• object,
• switch,
• wave,
• cultivation,
• invention,
• radiation,
• work,
• gear,
• termination,
• substrate,
• function,
• protection,
• detector,
• vibration,
• interaction,
• arena,
• behavior,
• cam,
• relic,
• modality,
• contact,
• unit,
• trouble,
• craft,
• loading,
• form,
• ventilation,
• assembly,
• gadget,
• agitation,
• mechanism,
• product,
• procedure,
• mill,
• artifact,
• input,
• filter,
• mixer,
• gauge,
• component,
• stress,
• rope,
• linkage,
• fluid,
• irritation,
• pattern,
• entity,
• appendage,
• article,
• surface,
• design,
• improvement,
• arts,
• figure,
• damage,
• event,
• subsystem,
• force,
• appliance,
• causality,
• hardware,
• accident,
• check,
• pick,
• lesion,
• malfunction,
• nature,
• indicator,
• circuit,
• jolt,
• fastening,
• pet,
• field,
• pressure,
• energy,
• display,
• measurement,
• block,
• knife,
• behaviour,
• installation,
• engine,
• actuation,
• parameter,
• software,
• whole,
• data,
• facility,
• difficulty,
• signal,
• character,
• output,
• breakdown,
• cooling,
• way,
• plant,
• seal,
• oscillation,
• spreader,
• principle,
• works,
• process,
• movement,
• weapon,
• level,
• disturbance,
• opening,
• abnormality,
• timer,
• method,
• excavator,
• change,
• closure,
• separation,
• valve,
• failure,
• calculator,
• environment,
• compartment,
• abuse,
• elements,
• coupler,
• testing,
• support,
• defect,
• action,
• instrumentation,
• engineer,
• problem,
• trap,
• danger,
• requirement,
• harvester,
• frame,
• separator,
• pump,
• apparatus,
• tissue,
• distortion,
• overload,
• hazard,
• specification,
• strength,
• response,
• links,
• transport,
• cutter,
• balance,
• power,
• shape,
• skill,
• arrangement,
• abrasion,
• information,
• interference,
• sensation,
• engineering,
• record,
• matter,
• dredge,
• sander,
• stuff,
• study,
• sensor,
• counter,
• tie,
• distribution,
• dispenser,
• perception,
• details,
• contaminant,
• member,
• resistance,
• creature,
• scale,
• instrument,
• gage,
• practice,
• drawing,
• item,
• assistance,
• actuator,
• guide,
• operation,
• abrasive,
• measure,
• fault,
• modification,
• aspect,
• shutter,
• control,
• service,
• transducer,
• quantity,
• lock,
• sound,
• stimulus,
• task,
• phenomenon,
• integrity,
• obstacle,
• vehicle,
• carrier,
• strain,
• compressor,
• impact,
• tool,
• perturbation,
• readout,
• specialist,
• barrier,
• characteristic,
• fixture,
• medium,
• terminal,
• effort,
• spring,
• variable,
• module,
• area,
• line,
• subject,
• joint,
• gates,
• being,
• machinery,
• trauma,
• dryer,
• space,
• engagement,
• contraption,
• controller,
• motion,
• quality,
• attachment,
• performance,
• issue,
• stimulation,
• trade,
• mistake,
• test,
• constraint,
• applicator,
• intervention,
• application,
• error,
• conveyance,
• toy,
• arm,
• fixing,
• contraceptive,
• science,
• attribute,
• handbook,
• creation,
• restraint,
• anemometer,
• crusher,
• technique,
• imperfection,
• fitting,
• sieve,
• accuracy,
• representation,
• weaponry,
• material,
• connector,
• release,
• drive,
• purpose,
• lubricant,
• printer,
• binding,
• machine,
• cause,
• impurity,
• shock,
• activity,
• complication,
• feature,
• injury,
• processing,
• agent,
• thing,
• necessity,
• connection,
• knot,
• factor,
• operations,
• influence,
• coupling,