The word "second-in-command" in English means: The person who is next in authority to the leader of a group., An officer who is immediately subordinate to a commanding officer..
The phonetic transcription of "second-in-command" is /ˌsekənd ɪn kəˈmɑːnd/ in British English and /ˌsekənd ɪn kəˈmænd/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "second-in-command": deputy, second, lieutenant, assistant.
Example usage of "second-in-command": "He is the second-in-command of the police station.". More examples on the page.