sparky

Short definition from Wiktionary

Adjective

1. 1
   Lively and animated.

Noun

1. 1
   A radio operator.
2. 2
   An electrician.

Proper noun

1. 1
   A nickname for a person who is lively and animated.
2. 2
   A name for a pet, traditionally especially a dog, with similar connotations.