Jigger and Nightcap

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

Nightcap and jigger are semantically related. In some cases you can use "Nightcap" instead a noun "Jigger".

Nightcap noun - An alcoholic drink taken at bedtime; often alcoholic.

Jigger and nightcap are semantically related. Sometimes you can use "Jigger" instead a noun "Nightcap".