Princeton's WordNet

1. appliance, contraption, contrivance, convenience, gadget, gizmo, gismo, widget(noun)

   a device or control that is very useful for a particular job

Kernerman English Learner's Dictionary

1. gadget(noun)ˈgædʒ ɪt

   a small useful piece of equipment

   a new gadget for my computer

Wiktionary

1. gadget(Noun)

   a thing whose name cannot be remembered; thingamajig, doohickey

2. gadget(Noun)

   any device or machine, especially one whose name cannot be recalled. Often either clever or complicated.

Origin: . First used in print by Robert Brown in 1886 (see quote in definition section). Might come from gâchette or gagée.

• apparaatAfrikaans
• آلة لِفَتْح العُلَبArabic
• приспособлениеBulgarian
• dispositivoPortuguese (BR)
• přístroj, zařízeníCzech
• das ApparätchenGerman
• tingest; dims; indretningDanish
• μικροσυσκευή, μαραφέτιGreek
• aparato, dispositivo, artilugioSpanish
• asjandusEstonian
• وسیله مکانیکیFarsi
• laiteFinnish
• gadgetFrench
• הֶתקֵןHebrew
• जुगत, मशीनHindi
• naprava, spravaCroatian
• szerkentyűHungarian
• alatIndonesian
• apparat, tækiIcelandic
• aggeggioItalian
• 小道具Japanese
• 작은 기계 장치Korean
• įtaisasLithuanian
• ierīce; ietaiseLatvian
• alatMalay
• gadgetDutch
• innretning, teknisk hjelpemiddel, greieNorwegian
• przyrząd, `patent`Polish
• وسیله مکانیکیPersian
• اّله، اسباب: سامانPashto
• dispositivoPortuguese
• gadgetRomanian
• приспособлениеRussian
• prístroj, zariadenieSlovak
• pripravaSlovenian
• napravaSerbian
• anordning, apparat, manickSwedish
• อุปกรณ์ขนาดเล็กThai
• âletTurkish
• 小巧的工具或機器等，小玩意兒Chinese (Trad.)
• пристрійUkrainian
• کوئی چھوٹا کل پرزہ یا مشینUrdu
• đồ dùngVietnamese
• 小器具，小机械Chinese (Simp.)