What does "plugged in" mean?

simple past and past participle of plug in

Plugged in

Common synonyms include: amplify, charge, connect, electrify, embedded ecosystem modeling, energize.

adj, verb, slang

adj, verb, slang ·Uncommon ·College level

Verb

1
simple past and past participle of plug in form-of, participle, past
"I plugged in the television."

Adjective

1
With its plug properly connected to the electric plug socket. not-comparable
"Check if the television is plugged in."
2
Fully aware; in a state of keeping up with current information about a topic; engaged wholeheartedly in a task or cause broadly, colloquial
"By subscribing to this magazine, you can stay plugged in to current issues."

"Check if the television is plugged in."