/ˈʌndərˌlaɪɪŋ ˈlɪmɪts/ – Phrase
Definition: Giới hạn cơ bản.
A more thorough explanation: in insurance law, the limits (=the maximum amount that an insurer must pay under an insurance policy) of a primary policy (=an insurance policy that must be used up before other insurance can be used)
Example: Excess policies are triggered upon actual payment of underlying limits.