Contraption and Hickey

Contraption noun - An interesting and often novel device with a practical use.

Hickey and contraption are semantically related. In some cases you can use "Hickey" instead a noun "Contraption".

Hickey noun - A small article the actual name of which one either does not know or cannot remember.

Contraption and hickey are semantically related. Sometimes you can use "Contraption" instead a noun "Hickey".