a adevice, equipment...
thesaurus.com says
apparatus, appliance, brainchild, coinage, contraption, convenience, creation, device, discovery, engine, equipment, gear, gimcrack, harness, implement, instrument, invention, machine, material, mechanism, tackle, thingamabob, thingamajig, tool, utensil, whatsis, widget
accessory, apparatus, effects, baggage
apparatus, stock, supplies, stuff, tackle, gear, tools, provisions
device, machine, tool, instrument, implement, mechanism, apparatus, gadget
shape, form, work, mold, mould, forge apparatus device contraption appliance engine motor
Rigging consists of the masts, yards, sails, and cordage of a ship which helps catch the wind in order to propel it through the sea. Some synonyms include gear, apparatus, clothing, equipment, and implements.
The word 'instrument' can mean many different things depending on context. The most general synonyms include 'tool', 'apparatus', or 'gauge'.
Carol and James headed straight to the appliance department to buy a new refrigerator. Some synonyms for appliance are machine, gadget, and apparatus.
Another word for the noun mechanism is device. Additional synonyms for mechanism are instrument, machine, apparatus, gears, motor, and black box.
Synonyms for "equipment" include "gear," "apparatus," "tools," and "machinery." These terms refer to the items or devices used for specific purposes or activities. Depending on the context, "instruments" or "implements" can also be suitable alternatives.
The plural for apparatus can be either apparatuses or remain as apparatus.
I built that apparatus.
They are synonyms.