Meaning of the word "calling card" in English

What does "calling card" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

calling card

US /ˈkɔːlɪŋ kɑːrd/
UK /ˈkɔːlɪŋ kɑːd/

Noun

1.

a small card bearing a person's name and sometimes address, used for leaving with someone whom one has visited but found to be absent

Example:
She left her calling card at the front desk.
In the past, gentlemen would leave a calling card when visiting.
2.

a characteristic or habit that reveals a person's identity or presence

Example:
The distinctive graffiti was the vandal's calling card.
His meticulous attention to detail became his professional calling card.