noun
Literal meaning: the second item in a sequence or ranking. Often used in contexts like lists, rankings, or numbered items.
このリストのナンバー２は何ですか？
What is number two on this list?
noun
second in command; deputy; right-hand person
Refers to the person who is second in authority or rank within an organization, team, or group. Commonly used in business, politics, and sports contexts.
彼は社長のナンバー２として会社を支えている。
He supports the company as the president's second in command.