/ˈkæs.tɪŋ voʊt/ – Phrase
Definition: lá phiếu quyết định.
A more thorough explanation: A casting vote is a vote that is given by the presiding officer of a meeting or assembly in order to break a tie when the other members have voted equally.
Example: The chairman had to cast his tie-breaking vote to break the deadlock in the board meeting.