tiệm cận

== Vietnamese == === Etymology === Sino-Vietnamese word from 漸近. === Pronunciation === (Hà Nội) IPA(key): [tiəm˧˨ʔ kən˧˨ʔ] (Huế) IPA(key): [tiəm˨˩ʔ kəŋ˨˩ʔ] (Saigon) IPA(key): [tim˨˩˨ kəŋ˨˩˨] === Verb === tiệm cận (uncommon) to gradually become close to; to approach === Adjective === tiệm cận (mathematics) asymptotic; asymptotical