1. (noun) something unspecified whose name is either forgotten or not known

• doodad
• doohickey
• doojigger
• gimmick
• gismo
• gubbins
• thingamabob
• thingamajig
• thingmabob
• thingmajig
• thingumabob
• thingumajig
• thingummy
• whatchamacallit
• whatchamacallum
• whatsis
• widget

2. (noun) a device or control that is very useful for a particular job

• appliance
• contraption
• contrivance
• convenience
• gadget
• gismo
• widget

1. (noun) something unspecified whose name is either forgotten or not known

• stuff

2. (noun) a device or control that is very useful for a particular job

• device

1. (noun) a device or control that is very useful for a particular job

• gadgetry
• gimbal
• injector
• mod con

1. (noun) a device or control that is very useful for a particular job

• convenient
• gadgeteer